Abi

This page lists questions and answers that were posted by visitors named Abi.

Questions

The following questions were asked by visitors named Abi.

(tanÈ+cotÈ)(sinÈ+cosÈ)=secÈ+cosecÈ

Two cars, one traveling north and one traveling west, collide at an intersection.The resulting momentum of the two cars together after the collision is 32 000 kg . m/s N30degreesW. Find the momentum of each car before the collision.

A 5.4 kg bag of groceries is in equilibrium on an incline of angle θ= 150. Find the magnitude of the normal force on the bag

Can someone please tell me how to calculate the standard deviation of the following values? 0.985 0.985 1.005 1.455 1.035 And please for the following numbers too 1.47 1.52 1.50 1.45 1.39

I have performed an experiment of simple harmonic motion and the values I got Mass(g)Distance (m) 200 0.438 250 0.398 300 0.345 350 0.312 400 0.297 450 0.281 500 0.259 I would like to know how to calculate the spring constant... since I have been having w...

have performed an experiment of simple harmonic motion and the values I got Mass(g) Distance (m) 200 0.438 250 0.398 300 0.345 350 0.312 400 0.297 450 0.281 500 0.259 I would like to know how to calculate the spring constant... since I have been having we...

Two cars are drag racing, starting from rest at t = 0, on a straight and level road. Team Alpha's car produces acceleration ax = alpha t^(-1/2) ; while Team Beta's car produces acceleration ax = Beta ; for all t > 0, where alpha and beta are positive cons...

Use the graph to estimate the limit: lim x->0 sin(3x)/x When x is in degrees lim x->0 sin(3x)/x = ________ I thought the the answer was (3*180)/pi but it's not... please help... Thanks

Consider the function f(x)=sin(5x)/x. (a) Fill in the following table of values for f(x): x= -0.1 -0.01 -0.001 -0.0001 0.0001 0.001 0.01 0.1 f(x)= ( I need the values of f(x) for each x) (b) Based on your table of values, what would you expect the limit o...

Consider the function f(x)=(4^x−1)/x. (a) Fill in the following table of values for f(x): x= -0.1 -0.01 -0.001 -0.0001 0.0001 0.001 0.01 0.1 f(x)= I the the falues of f(x) for each interval... (b) Based on your table of values, what would you expect the l...

Consider the function f(x)=(4^x−1)/x. (a) Fill in the following table of values for f(x): x= -0.1 -0.01 -0.001 -0.0001 0.0001 0.001 0.01 0.1 f(x)= I the the falues of f(x) for each interval... (b) Based on your table of values, what would you expect the l...

Find the slope of the tangent line to the ellipse x^2/36 + y^2/49 =1 at the point (x,y). slope =_______ Are there any points where the slope is not defined? (Enter them as comma-separated ordered-pairs, e.g., (1,3), (-2,5). Enter none if there are no such...

For what values of k is lim x -> INF coshkx/sin2x finite? (Enter your answer as an interval or list of intervals, for example, (-infinity,3], (5,7). Enter none if no values of k will work.) Please help..

For what values of k is lim x -> INF coshkx/sin2x finite?

Let f(x) = x^3 - x^2 + x - 1. Find an equation for tangent line to f at x = 2.

1)Which of the following compounds has the largest lattice energy: LiF LiCl NaF NaCl 2)Which of the following compounds has the most ionic character in its bonding: CaBr2 GeBr4 KBr GaBr3 3)Using the electronegativity table on page 364 of your text, which...

Newton’s Law of Gravity specifies the magnitude of the interaction force between two point masses, m1 and m2, separated by the distance r as F(r) = Gm1m2/r^2. The gravitational constant G can be determined by directly measuring the interaction force in th...

Sorry to repost this, again, but I still don't understand. Newton’s Law of Gravity specifies the magnitude of the interaction force between two point masses, m1 and m2, separated by the distance r as F(r) = Gm1m2/r^2. The gravitational constant G can be d...

Determine the mass of CO2 gas that has a volume of 7.10 L at a pressure of 1.11 atm and a temperature of 31.0°C.

I'm supposed to graph y= 4+2sin (pi/6 t -pi/5) i have the vertical shift d=4 amplitude 2 level line y=4 crest line y=6 trough line y=2 but i am not sure what the period is formula for period 2pi/b in this case 2pi/pi/6 => 12pi/pi do the pi's cancel, leavi...

Please help. I'm having a lot of trouble with solving inequalities and graphing them solve the inequality and graph the solution on the real number line x^2+x-6/x I got SS: -infinity to -3 including -3 union -2 to infinity including -2 is that right?

If each 11 football teams In a college athletic conference played each of the other teams just once in a season, how many games would there be? As part of your answer, make a table. How many games would there be for 12 teams?

Lactose (MW:342 amu) makes up the vast majority of the carbohydrate. Calculate the molarity of lactose in buttermilk and compare it to that of protein.

a store sells ladders. . the retail price was a 40m percent markup over the manufacturer price. .a month later, the store reduced the retail price of the ladder by 25 percent What percent markup is the new retail price over the manufacturer price?

A Company wishes to assign six of its workers to six different jobs (one worker to each job and vice versa). The rating of each worker with respect to each job on a scale of 0 to 10 (10 being a high rating) is given by yhe following table: Job 1 Job 2 Job...

A lineaer spring having a force constant k=40 N/m hangs vertically,supporting a 0.8 kg mass.the mass is then pulled down a distance of 0.15 m . During up and down oscillations ,the maximum speed of the mass will be..

A couple buys a $170000 home, making a down payment of 18%. The couple finances the purchase with a 15 year mortgage at an annual rate of 2.75%. Find the monthly payment.

A fighter accelerates from rest at 120,000 m/s^2 for a time of 4 seconds. How far did the jet fighter travel?

Solve by whatever method you would prefer. (Leave answers as improper fractions) 3x + 2y = -10 2x – 5y = 3 Can someone give step by step?

This is my answer and the comment for it was to answer in the greater detail could you tell me where I can expend my answer? Thank you. 1. In your opinion, what is the importance of the United States being "a nation of law, not of any individual, or group...

A farmer has 600 meters of fencing and wishes to enclose a rectangular field and then divide it into 3 separate plots. Set up an equation for the total length of fencing in terms of lengths x and y. Set up an eqaution for the entire area od the field in t...

Riley wishes to put a string of coloured lights up around her rectangular patio. Find the total length of the string she will need if the length of her pation is 4 meters less than twice its width and the area of the patio is 30 square metres.

A rectangle is inscribed in a semicircle with radius 8. The variable x is half the length of the rectangle. Write an expressions for the perimeter and area of the rectangle in terms of x.

Is there a comma needed in the sentence: "I have a completed a certificate from a major cooking school which I believe has prepared me well for this position" ?

Solve for x in terms of y: a) y=-4(x-2)^2+1

Solve for x: 3/4=x^1/2

How do you solve for x: (8x)/(x-8)≥12

Write x^2/3 in radical form:

Solve the inequality for x: 25x^2 - 16 <0

A park offers group tours for 100 to 300 people at a time. For every person over 100, the cost for each ticket is reduced by one cent off the normal s4 per person charge. Find the number of people in the group that yields the maximum total cost for the gr...

Mike powell set the world long jum record of 8.95 meters. Assume that the path of his flight was parabolic and thet the highest point cleared was e metere. Find an equation for his path

If the domain of y=g(x) is D = [-2, 6] and the range is R = [-8,10], find the domain and range of the function y=|g(2x) | +1

Find the exact value of sin (x-y) given sin x = 2/3 cos y 1/4 x is an angle in quadrant 2 and y is an angle in quadrant 1

Alex and Blen began a partnership (AB Partnership) by investing Br.78,000 and Br.52,000 cash respectively. During its first year of operation, the partnership earned net income of Br.60,000. Required: A.Prepare computations that show how the income should...

6.Cody Jenkins and Jun Ito formed a partnership to provide landscaping services. Jenkins and Ito shared profits and losses equally. After all the tangible assets have been adjusted to current market prices, the capital accounts of Cody Jenkins and Jun Ito...

What type of solute solvent interaction is found ammonia in water?

What kind of solute solvent interaction Bromine in carbontetrachloride

What type of solute solvent interaction sugar in water

What type of solute solvent interaction Tolune in cyclohexane

Answers

The following answers were posted by visitors named Abi.

actually when you calculate the equilibrium concentrations of each using the 0.010 L you find that the concentration of KSCN is the limiting reagent. so [FeSCN]^2 = mols KSCN/0.010L

Sooooooo Energy can't be destroyed it just changes state So the heat energy used on the iron and sulphur is then changed into chemical bonds, heat energy, light energy etc. The energy is still there but being used as chemical bonds to keeep the compound a...

Try your brain on Crystal Meth

I forgot to mention that the experiment is to teach us error analysis methods... I have to get the values of k for each interval Mass(g) Distance (m) 200 0.438 250 0.398 300 0.345 350 0.312 400 0.297 450 0.281 500 0.259 the values for k I got were k (N/m)...

The first value I tried was 3... and it didn't work either, I thought that the fact that it said "x is in degrees" affected. It also said at the end: (Give your answer accurate to at least 0.01...

the values I got for f(x) were 4.9; 4.99; 4.999; 4.9999; 5.0001; 5.001; 5.01; 5.1 The two firsts and the two lasts values are not correct and I don't know why... the limit is 5 also what i have for the other part is -.00001<=x<= .00001 4.9999<=y<=5.0001 t...

Hi Damon, Thanks for your help. Can you explain me how you got alpha (2/3) t^(3/2) ? Because I got alpha (4/3) t^(3/2) = beta (1/2) t^2 and then t= [(8/3)(alpha/beta)]^2 I then used my equation of beta and substituted t with my answer and I got x=(4096apl...

Ok, so I have r1= 0.0254m, m1=0.730283 kg, r2= 0.152m and m2=157.850 kg... I calculated (6.674E-11)(0.730283)(157.850)/(0.152m-0.0254m)^2 and I got 4.77E-7 and multiplyed it by 2 and then I got 9.54 E-7... Does this looks right?

But I just have to plug in one number for part A that most be E-7 and for part B I have to plug only one number too that must be E-8.

I showed it.... r1= 0.0254m, m1=0.730283 kg, r2= 0.152m and m2=157.850 kg... I calculated (6.674E-11)(0.730283)(157.850)/(0.152m-0.0254m)^2 and I got 4.77E-7 and multiplyed it by 2 and then I got 9.54 E-7...

I was substracting both radii, now I tryed (6.674E-11)(0.730283)(157.850)/(0.2286)^2 and I got 1.47E-7 and tryed 6.674E-11)(0.730283)(157.850)/(0.2286 +.1524 +.0254)^2 and I got 4.66E-8... but niether is right....

I did have to find those too but i was stuck on the Period! thank you so very much!

EDIT WHERE INEQUALITY IS GREATER THAN OR EQUAL TO ZERO

Sorry i should have put that in parenthesis (x^2+x-6)/x greater than or equal to 0

Isn't it x^2+x-6 = 0 (x+3)(x-2) = 0? x = -3 or x= +2?

I ended up with SS: (-00,-3]union [2,00) why would it be -3 to 0?

See, this is where i have trouble understanding. if i put if in the calculator i see why it'd be -3 to 0 but in the exams the professor makes sure we are not able to graph inequality in calculator my graph was off on paper, i just verified on ti84+ and it...

Aww it's not funny, it's frustating! :( you want me to replace x with -3 not sure what you're meaning by that try -3/-.001 where did you get the .001?? I'm so sorry i'm not understanding and thank you so much for helping

yes, it gives me 6001.001 as an answer You're not using a cal?

if i replace -.001 with x i get 6001.001 how are you solving that without calculator

but if replace x with -4 i get a positive answer too!

I'm still not understanding... it's okay i'll keep trying to figure it out. im clearly not double checking it right since i checked for 1 and got a positive answer but its supposed to be negative till 2 :-/ thank you so much for your time! it is honestly...

:D thank you!!! I guess I've been staring at this for too long and probably not typing them correctly on the calculator! THANK YOU SO MUCH!!!!!!

a-1/4 b-2/30 c-3/4

This website is boss and you can find the answer quickly. It really explains what you need to know better than I can because I can't show you graphs. mathbitsnotebook (dot com) (slash) Algebra1 (slash) FunctionGraphs (slash) FNGTypeExponential After readi...

Please show working

Can you explain how?

A silk making and bronze casting cause I got 100 on test wo woooo

The answer is 72, you just multiply 24x3

Have a nice day is a win win

ANONYMOUS is WRONG 4/1

1. C. They thought they paid too much taxes. 2. C. French borders returned to their locations before Napoleon's rule. 3. A. The role of the monarchy in government. 4. A. A set of laws that protected freedoms and equality. 100% thx for the answers.