Alex
This page lists questions and answers that were posted by visitors named Alex.
Questions
The following questions were asked by visitors named Alex.
The research department for a hardware chain has determined that at one store the marginal price of x boxes per week of a particular type of nail is: p'(x)=-4000/(2x+15)^3 Find the demand equation if the weekly demand for this type of nails is 10 boxes wh...
18 years ago
Larry, Moe, and Jo run the only saloon in town. Larry wants to sell as many drinks as possible without losing money. Jo wants the saloon to bring in as much revenue as possible. Moe wamts to make the largest possible profits. Using a single diagram of the...
18 years ago
Why does an iron ion attract a sulfide ion but not a zinc ion? The iron ion and the zinc ion are positive and don't attract each other. The sulfide ion is negative and is attracted both to the iron ion and to the zinc ion.
18 years ago
A violin string vibrates at 196 hz. what frequency will if vibrate with if it is fingered at 1/4 of its length? Four times as high the original... Frequency*lambad= vp
18 years ago
Glenda bought z containers of laundry detergent at $9 each. She gave the cashier $50. a. Find the change Glenda received in terms of z. b. If z = 3, how much change did Glenda receive?
12 years ago
Mylanta is composed of aluminum hydroxide and calcium carbonate. assuming that a mylanta tablet contains 175 mg of aluminum hydroxide and 145 mg of cakcium carbonate, answer the following: how many mL of 0.00836 M HCL (aq) can be neutralized with 2 Mylant...
18 years ago
If x/4 = y/5, then x+4/4 = ?/5
17 years ago
A liquid is usually _____ a gas. A denser than B less dense than C the same density as D lighter than
18 years ago
What property is changed when in skim milk is made?
18 years ago
What sea is between New Zealand and Australia? Thanks
18 years ago
How are atoms held together?
18 years ago
Je d'accord parce que quelques gens préfèrent dormir jusqu' à l'après-midi. Quelques gens sont des couche-tard. Je ne pas d'accord parce que quelques gens plutôt feraient la fête la nuit et ils ne seront pas attentifs. Quelques gens sont des oiseaux premi...
18 years ago
A plane leaves Toronto and flies with an airspeed of 2.20 x 10^2 km/h always pointing due east. A wind is blowing from the north at 8.0 x 10^1 km/h. a) What is the plane's velocity relative to the ground? b) What is the plane's displacement from Toronto a...
17 years ago
A box accidentally falls from the back of a truck and hits the ground with a speed of 15m/s. It slides along the ground for a distance of 45 m before coming to rest. Determine a) the length of time the box slides before stopping c) the time it takes to sl...
17 years ago
A car is traveling at 20m/s when it pulls out to pass a truck that is traveling at only 18m/s. The car accelerates at 2.0m/s^2 for 4.0 s and then maintains this new velocity. First it asked me to calculate the distance during acceleration so I used d = (v...
17 years ago
Can someone please help me out on this... An ideal transformer has 50 turns in its primary and 250 turns in its secondary. 12 V ac is connected to the primary. Find: a. The volts ac available at the secondary. b. Current in the 10 device connected to th...
17 years ago
A house has two rooms of equal area. One room is a rectangle 4ft narrower and 5ft longer then the square one. Find the area of each room. Please explain to me what to do because i am confused. Thanks
17 years ago
During aerobic respiration, glucose is broken down to form several end products. Which end products contain the carbon atoms from glucose? The hydrogen atoms from glucose? The oxygen atoms from glucose? The energy stored in the glucose molecules?
17 years ago
I'm doing an AP Lab on Cellular Respiration that is Ward's AP Biology Lab 5 with the germinating and non-germinating peas. One question asks what is the purpose of KOH in this experiment? I wrote Potassium Hydroxide is used to remove the CO2 produced duri...
17 years ago
I'm stuck on this thing in science. It's a lab report so its kinda hard to explain. We did a topographic map experiment. We had a big rock, and put it in a plastic bin. We then marked centimeters on the bin and filled water to the first centimeter. We dre...
17 years ago
Please check my French work: Les parents nous ont nourris à travers nos vies. Pendant que nous grandissons en haut du, les parents sont toujours là-bas de nous diriger dans faisant nos premières décisions. Le mariage doit travailler dans une façon similai...
17 years ago
A 5.0-kg box at the top of a 400cm ramp slides down 200 cm. How much gravitational potential energy was lost as the box slides from the top of the ramp to the 200 cm mark of the ramp? A cheerleader is thrown vertically upward into the air. As the cheerlea...
17 years ago
a survey of 651 farmers determined that 93 had been injured on the job in a given year. What is the probability that a particular farmer will be injury in a given year?
17 years ago
What are the double angle formulas for csc and sec?
17 years ago
Express as a single sine or cosine function (note: this is using double angle formulas) g) 8sin^2x-4 I just don't get this one. I know it's got something to do with the 1-2sin^2x double angle formula. It's the opposite though? :S h) 1-2sin^2 (π/4-x/2) = 1...
17 years ago
Can anyone give me a list of contra accounts and the accounts that they are contra counts too
17 years ago
Simplify 18. -(-4)+3= Solve equations of the form x+a=b solve 26. 6.3=t+2.9 30. -8=14+(d+-6) 32. 312.9+163.4+b 34. - 11/5+w=-4/5 Thank You very much!!!
17 years ago
Can anyone start me off on these questions? Thanks! When ax^3 - x^2 + 2x + b is divided by x-1 the remainder is 10. When it is divided by x-2 the remainder is 51. Find a and b. The volume of a box V(x) = x^3 - 15x^2 + 66x - 80. Determine expressions for t...
17 years ago
I'm not sure if these are correct. Can anyone correct these for me? - Calculate the frequency and period of a bee that beats its wings 3000 times in 30s. f = 3000/30 = 100Hz T = 1/100 = 0.01 s. - An acoustic guitar contains a sound box that increases the...
17 years ago
in the steps of the legislative process, the event that would happen first is what
17 years ago
This is for my science fair project. I was wondering, how do I "MEASURE A STAIN"? Since my project consists of staining some cloths, and comparing the differences of how Dove soap, dollarstore soap, and lard soap cleans the stain. My teacher said that he...
17 years ago
Why does the sunset appear to move?
17 years ago
What are characteristics like strength, longevity and vitality called?
17 years ago
Can anyone explain why natural selection works on phenotypes? And how that affects genotypes?
17 years ago
How do I make a 6M NaOH solution? (25mL) and is there a certain way to make NaCl saturated? or is it already saturated?
17 years ago
How do I make a 6M NaOH solution? (25mL)
17 years ago
1)Determine the equation of the polynomial function of degree 3, with zeros -2, -1, and 4. The graph of this function passes through (5, -84). I have no idea how to do this one. 2) When 4x^4 - a5x^2 + px + 6 is divided by 2x+1, the remainder is 2. Determi...
17 years ago
Can someone explain allopatric speciation and sympatric speciation. I know that allopatric speciation is because of geographic isolation. I don't understand sympatric speciaiton, though.
17 years ago
If the hypotenuse of a chord on a circle is 8 and it is an isosceles triangle with a 90 degree angle, what is the arc subtended by the angle?
17 years ago
Can someone please explain when to use depuis, ca fait, and il y a? I know they're time expressions but I'm so confused about when to put what. Thanks!
17 years ago
When using verbes de perception ou de sensation like regarder, ecouter, etc. How do we conjugate them? I know that the other verb should be in l'infinitif. Do we just write it (regarder etc) in present?
17 years ago
Can anyone explain la concordance des temps when your first verbs are passe compose, imparfait and plus-que-parfait?
17 years ago
A solution contains 15 g of CaCl2 in a total volume of 190 mL. Express the concentration in terms of grams/liter, % w/v, molars, and milimolars.
17 years ago
How was it determined that a circle is 360 degrees and all angles of a triangle equal 180 degrees?
17 years ago
How is farming in Africa and the Pacific Islands similar?
17 years ago
Electron Transfer Theory Write an label the oxidation and reduction half-reaction equations. a) Ni(s) + Cu(NO3)2(aq) -> Cu(s)+ Ni(No3)2(aq) oxidation - Ni(s) -> Ni2+(aq) + 2e- reduction - Cu2+(aq) + 2e- -> Cu(s) b) Pb(s) + Cu(NO3)2(aq) -> Cu(s) + Pb(NO3)2...
17 years ago
On a dt graph if there is a curve from 1 decreasing to 1.2 in an interval does is the velocity and acceleration + or 9? And is it slowing down or speeding up or neither?
17 years ago
My teacher gave me a box and told me to see how many I could fit in the class room without taking out the heater or the desk. Ive tried many different things but I just cant figure it out. I don't know the measurments or anything. How do I do It? The desk...
17 years ago
1) A car traveling at 22m/s decelerates at a constant 1.5m/s^2. Calculate the time it takes to stop. I first calculated the distance which is 160 m. Then I used the formula d=vit+1/2at^2. I got a quadratic -0.75t^2+22t-160. I got 13 or 16 as my time, but...
17 years ago
This is for oxidation numbers. I need to know how to show my work. Ex: for NaClO, I have to find the oxidation number for Cl I showed my work. NaClO +1+x+(-2)=0 +1+x-2=0 x-2=-1 x=-1+2 x=+1 Therefore, the oxidation number for chlorine in NaClO is +1. Cl^-...
17 years ago
d) 2Al(s) + Fe2O3(s) 2Fe(l) + Al2O3(s) Oxidation 2Al(s) 2Al+ + 2e- Reduction Fe23+ + 3e- 2Fe(l) Oxidation numbers for chlorine HCl = -1 MnO2(s)= +4 KMnO4(s)= +7 Oxidation numbers for manganese Mn(s)= ? MnCl2(s)= +7 Mn2+(aq)= ? MnO4- =? And then SO4...
17 years ago
PbO2(s) + Pb(s) + H2SO4(aq) PbSO4(s) + H2O(l) Can anyone help me identify what the redox reactions are for this equation? I don't understand how to do it when there are more than 2 chemicals.
17 years ago
I found the charges on all of the following atoms and found out that Mn was reduced and C was oxidized. CH3OH- + MnO4- ----> Mn2+ + CH2O 2e-/C 5e-/Mn x 5 x 2 = 10 = 10 5CH3OH- + 2MnO4- ----> Mn2+ + CH2O Can anyone help me balance the rest?
17 years ago
CH3OH + MnO4- ----> Mn2+ + CH2O Earlier I posted this question and then realized that CH3OH didn't have a charge. It changed my work because the oxidation state changed. Can you check if what I fixed is correct? CH3OH- + MnO4- ----> Mn2+ + CH2O 1e-/C 5e-/...
17 years ago
The following equations represent spontaneous reactions. From this evidence, set up a table of relative strengths of oxidizing and reducing agents. Write half-reaction equations and label the strongest oxidizing agent and reducing agent. Co + Pd2+ ----> C...
17 years ago
The following equations are intepretations of the evidence from the reactions of four metals with various cation solutions. Make a table of half-reactions and arrange the four metallic ions and the hydrogen ions in order of their decreasing tendency to re...
17 years ago
Predict the most likely redox reaction and use the spontaneity rule to predict whether the reaction will occur spontaneously. 1. An aqueous solution of potassium permanganate was reacted with an acidic solution of sodium bromide and an orange-born substan...
17 years ago
Simplify each expression 5j+j 6d-3d 2a+4b+b+5a 12y-y-7y 20+8s-14+2c+s
17 years ago
A semi- trailer truck (seen from back) of mass M is negotiating a right hand curve on a level highway, The constant speed of the truck is v and the radius of curvature of it's circular trajectory is R. The road exerts normal forces on the trucks tires F1,...
17 years ago
1. A student wishes to set up an electrolytic cell to plate copper onto a belt buckle. Predict the length of time it will take to plate out 2.5g of copper from a copper (II) nitrate solution using 2.5A current. At which electrode should the buckle be atta...
17 years ago
What are some hardships faced by families during The Great Depression.
17 years ago
2sin(x)cos(x)+cos(x)=0 I'm looking for exact value solutions in [0, 3π] So I need to find general solutions to solve the equation. But do I eliminate cos(x), like this... 2sin(x)cos(x)+cos(x)=0 2sin(x)cos(x)= -cos(x) 2sin(x) = -1 sin(x) = -1/2 at 4pi/3 an...
17 years ago
Am I right on this? 2sec^2(2x)-8=0 2sec^2(2x)=8 divide by 2 sec^2(2x)=4 find square root sec(2x)=2 Now, would this simply be asking me to find where secant is equal to one? Or is there no solution because secan't (pun intended) be equal to anything above...
17 years ago
Can someone start me off on these and please explain step by step how you got everything because I'm having difficulty understanding the entire concept. Find the projection of u onto v and calculate its magnitude. a) u = (2,5) v = (6,4) b) u = (3, 6, -2)...
17 years ago
Can someone start me off on these and please explain step by step how you got everything because I'm having difficulty understanding the entire concept. Find the projection of u onto v and calculate its magnitude. a) u = (2,5) v = (6,4) b) u = (3, 6, -2)...
17 years ago
What solid melts at 35 degrees celsius
17 years ago
1. A kid was tobogganing but the warm sun melted the snow and he must now pull his 10kg toboggan on the muddy slope (coefficient of kinetic friction is 0.3, the bottom of the hill is 10 degrees). He pulls with a force of 30N. The parallel force applied is...
17 years ago
State the normal of a line that is parallel to 2x-4y+5
17 years ago
I am really lost and confused! Consider the lines r = (1,-1,1) + t(3,2,1) and r = (-2,-3,0) + u(1,2,3). a) Find their point of intersection. b) Find a vector equation for the line perpendicular to both of the given lines that passes through their point of...
17 years ago
Thank you for the help! "When I solved equations 2 and 3 I got u=0 and t=-1, giving me r = (-2,-3,0) in both r = ... equations." Ok I'll check that. I just have a question...how would you get r = (-2,-3,0) when u = 0 and t = -1?
17 years ago
Determine which pairs of lines are parallel or perpendicular. x = 1-3t, y = 7+4t x = 2-4s, y = -3s L1: r = (1,7) + t(-3,4) L2: r = (2,-3) + t(-4,-3) Now how is that perpendicular? I know how to find it a vector of a line is parallel but I don't know how t...
17 years ago
Please help me correct and properly translate the following Spanish paragraph: Ayer, vi a Martin Luther el sentarse encima de una calabaza grande. Una col cayó del cielo y lo golpeó en la cabeza. Martin Luther estaba enojado en la col y juró en ella. La m...
17 years ago
Estuve trastornado tan cuando mi hermano pidió que el hombre polaco saliera de nuestra casa. Entonces fui abajo al sótano a trabajar en mi preparación. Sin embargo, no era alegre. Deseé levantarme y bailar. Despejé tan mi escritorio, estaba parado sobre é...
17 years ago
What are a few significant differences between laboratory thermometers and clinical thermometers?
17 years ago
I don't understand this. Can you do some examples? One student had the following way of dividing fractions. First the student renamed the two fractions with a common denominator. Then the student ignored the denominators and just divided the numerators to...
17 years ago
Someone please explain these! The angle between two planes is defined as the angle between their normals. Determine the angle theta between 0 and 90 degrees between the given planes. a) 2x+3y-z+9 = 0 and x+2y+4 = 0 ----------------------------------------...
17 years ago
For corrosion resistance, a steel bolt is plated with nickel from a solution of nickel(II)sulfate. If 0.250 g of nickel produces a plating of the required thickness and a current of 0.540 A is used, predict how long in minutes the process will take
17 years ago
A car bumper is plated with chromium using chromium(III) ions in solution. If a current of 54 A flows in the cell for 45 min 30 s, determine the mass of chronium deposited on the bumper.
17 years ago
An electroplating cell operates for 35 min with a current of 1,9 A. Calculate the amount, in mols, of electrons transferred.
17 years ago
help, i'd like to know how to do this titration question: for example: a 1g sample of naoh contaminated with na2co3 is titrated with 0.500MHCl, and it is found that 46.5mL of HCl are required for neutralization. Find the percentage by mass Na2Co3. thank y...
17 years ago
Neutral metal sphere A, of mass 0.10kg, hangs from an insulating wire 2.0m long. An identical metal sphere B, with charge -q is brought into contact with sphere A. Sphere A goes 12 degrees away from Sphere B and there is a 90 degree angle at Sphere B. Cal...
17 years ago
Describe how energy is transferred through the ecosystem.
17 years ago
A particle moves on a vertical line. Its position, s, in metres at t seconds is given by s(t) = t^3 - 9t^2 + 24t, t>0/ I found the velocity and acceleration functions. s'(t) = 3t^2 - 18t + 24 s''(t) = 6t-18 b) When is the particle moving up? down? c) Find...
17 years ago
Neutral metal sphere A, of mass 0.10kg, hangs from an insulating wire 2.0m long. An identical metal sphere B, with charge -q is brought into contact with sphere A. Sphere A goes 12 degrees away from Sphere B. Calculate the initial charge on Sphere B. Note...
17 years ago
N2+3H2->2NH3 What volume of hydrogen is necessary to react with five liters of nitrogen to produce ammonia? (assume constant temp. and pressure.)
17 years ago
Describe the role of each of the following types of bonds in a polyamide: a) covalent bonds
17 years ago
How do you tell what part of speech a word is under classification. How do you tell how each word is used in the sentence under construction? I will walk and he will ride a bike.
17 years ago
Can someone show me how to do an indefinate integral? I have to evaluate this problem. x^2(3x-1)dx
17 years ago
A 3.0kg air puck sliding at 4.0m/s collides with a 5.0kg puck. After the collision the 3.0kg puck is moving north at 1.0m/s while the 5.0kg puck is moving south at 1.0m/s. a) What was the initial velocity of the 5kg puck? I did: m1v1 + m2v2 = m1v1' + m2v2...
17 years ago
3) a) Calculate the unstretched length of a spring, which has a Hooke's constant of 40N/m and is 56cm long when supporting a stationary 800g object. I did mag = kx (0.800)(9.81) = 40x x = 0.20m l-x = u 56-20 = u u = 36cm Is that right? b) The period with...
17 years ago
6) If a flea has a mass of 2.0x10^2 micrograms jumps vertically to a height of 65mm and 75% of the energy comes from elastic potential energy stored in the protein, determine the initial quantity of elastic potential energy. drwls said to use: (1/2)M g H...
17 years ago
Can someone explain how r = sqrt(1+(c-3)^2) becomwa r = (c^2-6c+10)^1/2
17 years ago
Let f(x) = -2/((5+3x)^4) Determine f'(x) using the chain role. Can someone please do this step by step and explain?
17 years ago
Let f(x) = sqrt(3x+15) Find f'(x) The answer is 3/(2sqrt(3x+15) Can anyone who does this please explain step by step why you did what you did? I have a lot of difficulty finding the derivative with radicals.
17 years ago
Let y = u^3+6u, where u = 2x^4+3x^2-2 Find dy/dx. Also.. 2) Let f(x) = 1/sqrt(4x^2-x). Determine f'(x). 3) Let y = 5/cubrt((2x-5)^2). Determine dy/dx.
17 years ago
A perfectly (non-head on) elastic collision occurs between a 0.25kg object moving east at 4m/s and a stationary 0.3kg object. Following the collision the 0.25kg object is moving at 2m/s. a) What is the speed of the 0.3kg object after the collision? I did:...
17 years ago
Can anyone explain how to use the chain rule and power rule together to find the first derivative and please do these examples. f(x) = -3x^4/(sqrt(4x-8)) g(x) = ((2x+5)/(6-x^2)^4 g(x) = (8x^3)(4x^2+2x-3)^5 y = [1/(4x+x^2)^3]^3 Thank you so much!
17 years ago
What are four professions associated with designing and constructing a bridge? I have Civil/Construction Engineer and Surveyor so far. I need 2 more please.
17 years ago
I really need help on these questions because I have a test tomorrow and don't understand how to do them. 1) A wire of diameter 0.6mm is placed in the path of light coming from a laser. Light diffracts around both sides of the wire; the diffracted waves t...
17 years ago
2) A single slit diffraction pattern is created using light of wavelength 700nm and a slit which is 0.020mm wide. a) What is the angular width of the central diffraction bright region? b) How wide is the central bright region observed on a screen located...
17 years ago
Answers
The following answers were posted by visitors named Alex.
Merci!
18 years ago
a) I did the pythagorean theorem and got 234 km/h. I did Tan O = O/A and got [E20N] for my direction. b) I got 585 km. Did I get the right answers? I was a bit confused by part a because I thought it also involved gravity.
17 years ago
Why is the velocity 7.5?
17 years ago
Sorry its not all there here is what I need to find.... 1. The volts ac available at the secondary 2. Current in the 10 device connected to t he secondary 3. Power supplied to the primary 4. Power supplied to the secondary
17 years ago
Also...I'm doing the Ward's AP Biology Lab 5 on Cellular Respiration. And it asks for three controls in the experiment. I have the temperature, the type of peas. What is the other control?
17 years ago
I know, I just cant get an if then because statement for my hypothesis.
17 years ago
what about because? If the slope is steep, then the contour lines will be close together because....
17 years ago
The answer would be: 1/7 Am I right? Thanks
17 years ago
hypertonic
17 years ago
Thanks!
17 years ago
Thanks a lot! But can you please explain how you got 4(2sin^2 x - 1) for g and cos 2(π/4-x/2) for h? I think I might understand h because 1-sin^2x = cosx but wouldn't it just be cos(π/4-x/2) cos(π/4-x/2)?
17 years ago
You take the numerator and divide it by the denominator.... numerator= on top demoninator = on bottom
17 years ago
i mean, a list of contro accounts and the acounts that they are contra accounts to
17 years ago
i BELIEVE i need the density of the stain, but my teacher did not specify And I am in Grade 12 chemistry. And he said that we have some old instruments tucked away, so I'm not sure if he has something that COULD measure the stains.
17 years ago
Or it might be the colour, either the colour or the density of the stain. Since I just need to measure how clean it is after I used the soap on it.
17 years ago
That's right.
17 years ago
Thank you! But I don't understand how the phenotype would affect the genotype. Isn't it supposed to be the other way around?
17 years ago
Thanks! I just wanted to know if we'd conjugate them in present.
17 years ago
I also asked a while back about Les Expressions Temporelles. Thanks for the help, I understood them. But how would I know which one to use?
17 years ago
Je reste à l'asile pendant 13 ans parce que mes souliers parent. Je suis resté à l'asile pendant 13 ans parce que mes souliers avant parlé. That's an example of what I mean. When you conjugate something in either passe compose, imparfait or plus-que-parfa...
17 years ago
A displacement will only take place if the free metal is higher on the activity series than in the bond. Since Zn is higher on the activity series than Ag a reaction takes place and it becomes ZnNO3 + Ag
17 years ago
That is Tantalum. I am not allowed to post internet addresses, but look on webelements for key information.
17 years ago
I'll try this again. Do you have the activity series tool with you? If not, google an image of it. Generally, the metal with the most activity is lithium and the metal with least activity is gold. In a displacement reaction one atom takes the place of ano...
17 years ago
114/266 Divide 114 by 3. Multiply 7 by your answer to find the new denominator.
17 years ago
2x+4
17 years ago
C for the first one. All of them aside from 320 lie in Quadrant 1. 320 and -400 lie in Quadrant 4. Since 400 is negative it moves clockwise, when the other angles move counterclockwise. I'm not sure what you're asking in the 2nd. The exact value of cos th...
17 years ago
1-1.2 is the time interval and at 1 the point is at 150 and 1.2 the point is at 50.
17 years ago
Do you know how to show that using x? Show steps for it like I did with the first example?
17 years ago
Oh no..it doesn't. I misread it because of the print. Wouldn't that change the whole thing? I don't think it would have a coefficient of 5 anymore. I'm balancing redox equations. And now since the overall charge has changed, the charge on the carbon has c...
17 years ago
Ahh! You're right. I multiplied the H with the O instead of adding and ended up losing a -1 charge. Thanks so much for the help!
17 years ago
Hi! I think that it's 25 on each.
17 years ago
OH! I just realized that Ca2+ + Be and Hg + 2H+ are actually nonspontaneous reactions.
17 years ago
sprinkle
17 years ago
1) Cd | Cd(NO3)2 || Ag(NO3)2 | Ag Reduction at Cathode: [Ag+ + e- ---> Ag]x2 Oxidation at Anode: Cd ---> Cd2+ + 2e- 2Ag+ + Cd ---> Ag + Cd2+ Is this right? 2IO3- + 12H+ + 5Zn ---> I2 + 6H2O + 5Zn2+
17 years ago
2Ag+ + Cd ---> 2Ag + Cd2+ *
17 years ago
Not dividing both sides by cos x, subtracting cos x from the left side first, then dividing by cos x. Would that work?
17 years ago
My mistake about the locations of where sin(x) is equal to -1/2... &#*@ now I have to redo two lengthy problems. Thanks, though.
17 years ago
Set up an equation. 8 3/4 + x = 11 1/8 Isolate the variable... x= 11 1/8 - 8 3/4 Find a common denominator (in this case, 8.) You can also, as I'm going to do, convert the mixed numbers into improper fractions. x= 89/8 - 38/8 Now solve that, convert it ba...
17 years ago
I'm beginning to wonder if people use this as a supplement for actually learning the material. Learn these rules and you'll be able to solve any problem like this. WHAT is the answer. You need to find this. The easiest way is to call it X IS when you see...
17 years ago
In the diagram the person is pushing down on the packages. What would change?
17 years ago
If up was positive, would the vertical component of the pushing force be negative?
17 years ago
Thanks Sra! No, I wasn't asking you to act as a translation service; I just meant that I need to make sure that the sentences read correctly in both Spanish and English. The "pocket book of potato shavings" should have been a bag of potato chips. How do I...
17 years ago
Please help me correct the paragraph above. I need help with the spelling, grammar, and style of the paragraph. Thanks and God bless! - Alex
17 years ago
Describe long term and short term changes to the environment due to natural events and human actions.
17 years ago
Thank you for your response SraJMcGin!!
17 years ago
move all the ones with p to one side and the other fractions to the other so it becomes 3p/8 + 7p/16 - p/16 = 1/4 + 1/2 + 3/4 then change 3p/8 to 6p/16 by multiplying by 2 and 1/2 to 2/4 the same way. 6p/16 + 7p/16 - p/16 = 1/4 + 2/4 + 3/4 add both sides...
17 years ago
I got 23cm using that formula for 3a. Should I add that to 36? I don't get it.
17 years ago
I got 8.4x10^-8. Is that right?
17 years ago
Don't answer this question I was kidding around!
17 years ago
Well I got Chlorine gas for Element, I just don't understand how to find Compound B and answer the questions.
17 years ago
The empirical formula for compound B is CH2
17 years ago
I get everything, but what's the use of finding the moles when u subtract 6.02 from 11.98, what do you do with the moles? And for Part A im getting 37grams Part B I got .83 atm.. Am I right?
17 years ago
I think we're both right about the 37.9 grams or whatever, and I think you're right about the .538 atm, because one of the answer keys says so, but how did you get .538 atm? By the way, I appreciate your help on this problem, thanks so much, I owe u.
17 years ago
3, thanx
17 years ago
308, yes exactly, I see. Thank-you very much.
17 years ago
thank-you very much
17 years ago
The letter "O"
17 years ago
hi guys quick question what chemical reactions take please in brewing , yoghurt production and catalytic converters? hopw you can help Alex
17 years ago
OO . . Thank you so much that example makes sense. Thanks!
17 years ago
What does "Standard form" mean?
17 years ago
I think this is how you do it - 5280 frt = 1 mile. 1 day = 24 hours/1 hour = 60 minutes. So i would use dimensional analysis, so you start with something that looks like a table and you fill in the answers using what you know from above. so it would be 11...
17 years ago
4.2+3.7
17 years ago
No, and it's spelt "coffee". :)
17 years ago
14
16 years ago
Be put in jail, go to court, serve time or(like other places) put you in rehab. Legally, it's expensive. Lawyers cost alot of money.going to rehab too. But if help is needed, it has to be done. Asking for help is not that hard to do.
16 years ago
you need to multiply 7 and n.
16 years ago
elephant, snakes
16 years ago
I absolutely agree. I believe that these changes need to be put in books. But as you know getting new books are hard to get.
16 years ago
But if you graph it. the graph is not symmetric to the origin. odd functions are always symm to the origin
16 years ago
are you sure? is a question i have to anwser? it doesnt like disapear or anyting?
16 years ago
Thanks!
16 years ago
This is my essay! ughh My most significant achievement has been becoming a member and earning the position of Vice President for the Best Buddies International club at John A. Ferguson Senior High school. Best Buddies is an organization dedicated to enhan...
16 years ago
Shortly after joining the club, I was paired with my buddy Victor. When I first met Victor he was very shy, yet he was so eager to be my friend. I was confident that we would have an amazing friendship, and I am happy to say that I was right. Throughout t...
16 years ago
I had a problem posting the essay up, that's only 2 paragraphs
16 years ago
When I was first offered the position of vice president, I was apprehensive, yet I was sure that I could handle the responsibility. I want to help others see the beauty in all people with intellectual disabilities. I want my friends to realize that to fin...
16 years ago
i got 62
16 years ago
Try looking into books or more websites.
16 years ago
can u help me with my homework
16 years ago
It says that question what i just said.
16 years ago
so it's the house of respresentatives right?
16 years ago
Is this the right answer?
16 years ago
Thanks i see where i went wrong
16 years ago
Hiya ty peeps you really helped me on my homework now i don't have to sit through an hour detention when the bell goes(I am at school right now in the libary)he he the teacher is starring at me im just saying i need to write a story(she'll believe ANYTHIN...
16 years ago
This question is related to limits.
16 years ago
Thanks everyone!
16 years ago
I have a similar question relating to limits that I solved lim(x-->0) (1-cosx)/2x^2 I multiplied the numerator and denominator by (1+cosx) to get lim(x->0) (1-cos^2x)/2x^2(1+cosx) = lim(x->0)sin^2x/2x^2(1+cosx) the lim(x->0) (sinx/x)^2 would =1 I then sub...
16 years ago
yes i got now, thanks for the help.
16 years ago
oh, dang, forgot about that identity! Okay, well, adding that up it ends up as 2sinx2cosy... but I need it to be 2sinx(1)cosy. or am I really tired and I'm thinking too out of the box to realize the entire term of 2sinxcosy consists of 2sinx's and 2cosy's...
16 years ago
Thank you very much you really Helped!
16 years ago
I had the same homework to not like this but now I know how to do it thanks chico for posting a similar problem and thanks damon
16 years ago
Sorry I can't find anymore I have to go anyway. I wish I could still continue to help you but my eyes are killing me. I hope I helped. Bye!!
16 years ago
Thanks you so much you really helped me! God Bless YOU
16 years ago
I found a quote what about this "Are we to paint what's on the face what's inside the face or what's behind it?"
16 years ago
Um.... I typed on google quotes on painted faces I didn't know it came from a book. Is the book called painted faces because I could look it up on google.
16 years ago
Ok i'll be back stay on it be 5 minutest
16 years ago
Ok here's one quote I found "I painted my face-- I stole up now you eat-- all of you-- and I--" Page 67 Chapter 4
16 years ago
Did I help you I found another one did you still want it?
16 years ago
"We could steal up on one-paint our faces so they wouldn't see perhaps surround them and then-" Chapter 4 page 54
16 years ago
There is no division here? Is this all adding and subtracting?
16 years ago
Someone plz help..i have been working on it for 2 hours..i don't get this..HELP
16 years ago