Lydia
This page lists questions and answers that were posted by visitors named Lydia.
Questions
The following questions were asked by visitors named Lydia.
Can someone help me finish this equation, please? We're adding Magnesium to Copper sulfate and getting Copper. This is what I have as of now: CuSO4+Mg===>Cu I'm guessing it is a single replacement, so should I add MgSO4 to the right? But then my lab proce...
18 years ago
Why if you dissolve cobalt chloride solution in distilled water and then pour acetone in it, the bottom part of the graduated cylinder is red and the top part is blue? What do you mean by it has one color with water of crystallization? CoCl2*6H2O is a pur...
18 years ago
Can someone please help me with these problems? Please and thank you. 1)Solve the equation: (1/x)+[x/(x+2)]=1 2)Simplify the complex fraction: 3-(3/4) ------- (1/2)-(1/4) (1/x)+ [x/(x+2)] = 1 Convert left side to the sum of fractional terms with common de...
18 years ago
Which one would be the best answer? Would (A) be the best answer? The opposite of a traditional language program might be which: A. developmentally appropriate practice B. conventional program C. back-to-basics program D. teacher-directed program
18 years ago
Would you make sure I have chosen the best answer to these two questions? 1. Teacher observation is one of the best methods of assessment since: A. there are no standardized tests for young children. B. the type and number of language arts skills assessed...
18 years ago
Do you underline, put in italics, or quote article titles from magazines?
18 years ago
what would the dependent and independent variable and control and experimental group be in this problem: John is intrigued by the relationship between frustration and aggression. He proposes to study whether socioeconomic status is a factor in how drivers...
18 years ago
Hello there. I was wondering if someone could please tell me whether or not you could call a government totalitarian and communism? We're studying Sparta (from ancient Greece) and our teacher said it was totalitarian and later she said it was communist-li...
18 years ago
I don't understand how to write the formulas for unit analysis. I can do the problems, but the explanation of the formulas in my book doesn't make sense with the problems I am doing. For instance, this one: Find the unit rate: $2 for 5 cans of vegetables....
17 years ago
Describe 2 ways government could promote the use of photovoltaic power systems for homeowners. Thanks!
17 years ago
What is the difference between nationalism and federalism? Thanks!
17 years ago
I have no clue as to how this problem should be solved... could i have some help please? Calculate the rms speed of SF6 molecules at 16°C
16 years ago
For the first 1 1/2 hours of a 91km journey the average speed was 30km/h.If the average speed for the reminder of the journey was 23km/h, calculate the average speed for the entire journey.
16 years ago
Is it true that during the McCarthy era that if accused communists gave names of other communists then they would be let off the hook? Like, how did it work when McCarthy asked people for names? Thanks!!!
15 years ago
Would Ireland be considered a developed country? How wealthy is it in comparison to other countries? Thanks!
15 years ago
An isosceles triangle has two sides of length w that make a 2á-degree angle. Write down two different formulas for the area of this triangle, in terms of w and á (Greek “alpha”). By equating the formulas, discover a relation involving sin 2á, siná, and co...
15 years ago
What do you call the phenomenon that causes dispersion of white light when it passes through a triangular prism
15 years ago
The siren of a police car produces a sound of frequency 420Hz.A man sitting next to the road notices that the pitch of the sound changes as the car moves towards and then away from him.1- WRITE DOWN THE NAME OF THE PHENOMENON. 2-ASSUME THAT THE SPEED OF T...
15 years ago
Who is the richest person in Paraguay? Thanks!
14 years ago
Multispectral refers to: A. UV, IR, and visible light B. the many colors in visible light C. UV, IR, and x-rays Thanks!
14 years ago
30m = 6000, i have converted to cm, in, and ft, no where close to getting 6000? help
14 years ago
allegory of the call of the wild
14 years ago
novel phrase the domesticated generation fell from him ?
14 years ago
Bill and Amy want to ride their bikes from their neighbourhood to school which is 14.4 kilmeters away. It takes Amy 40 mins to arrive at school. Bill arrives 20 mins after Amy. How much faster (in meters/second) is Amy's average speed for the entire trip?
14 years ago
Using the information about John, Jason, and Julie, can you uniquely determine how they stand with respect to each other? On what basis? Statement 1: John and Jason are standing 12 feet apart. Statement 2: Julie is standing 31º NW of Jason. Statement 3: J...
14 years ago
Given that triangles KON and LOM are similar, find the scale factor
14 years ago
One equilateral triangle has sides 5 ft long. Another equilateral triangle has sides 7 ft long. Find the ratio of the areas of the triangles
14 years ago
M is the midpoint of segment AN, A has coordinates (-6,2) and M has coordinates (-1, -3). What are the coordinates of N?
14 years ago
Can a triangle have sides with lengths 7, 13, and 9?
14 years ago
Tell if the measures 9,11, and 7 can be side lengths of a triangle. if so, classify the triangle as acute, right, or obtuse?
14 years ago
the lengths of 2 sides of a triangle are 2 inches and 10 inches. find the range of possible lengths for the third side, s.
14 years ago
this one is killing me for some reason: Find any of the values of k so that (-3, 4), (-8,5), and (-5, k) are the verticles of a right traingle.
14 years ago
if 6, 10, and 12, and 9, and x are the lengths of the coresponding sides of two similair triangles, what is the value of x?
14 years ago
Use the distance formula and the Pythagorean theorem to find the distance, to the neearest tenth, from R(6,-5) to U(-2,6)
14 years ago
write and equation on point sloop form for the perpendicular bisector of the segment with endpoints A(-3,-3) and B(5,6)
14 years ago
From the top of a lighthouse 75 feet high, the cosine of the angle of depression of a boat out at sea is 4. To the nearest foot, how far is the boat from the base of the lighthouse?
14 years ago
can someone tell me what this means please Esta campana muda en el campanario, esta mitad partida por la mitad, estos besos de Judas, este calvario, este look de presidiario, esta cura de humildad. Este cambio de acera de tus caderas, estas ganas de nada,...
14 years ago
Hi I was wondering if someone could please help me with this question: What was the place of residence of the Ho-Chunk war chief Red Bird? I have searched many places and have had no luck finding the answer. Thanks much! =)
14 years ago
Lee Holmes deposited $16,600 in a new savings account at 9% interest compounded semiannually. At the beginning of year 4, Lee deposits an additional $41,600 at 9% interest compounded semiannually. At the end of year 6, what is the balance in Lee’s account...
14 years ago
Lee Holmes deposited $16,600 in a new savings account at 9% interest compounded semiannually. At the beginning of year 4, Lee deposits an additional $41,600 at 9% interest compounded semiannually. At the end of year 6, what is the balance in Lee’s account...
14 years ago
What is the magnitude of the momentum of a car weighing 1,555 N when it is moving at a speed of 23 m/s? Express your answer in kg m/s.
13 years ago
A 29 g rubber bullet is travelling to the right at 200 m/s, when it hits a 1.1 kg block of wood sitting on a horizontal frictionless surface. If this collision is inelastic (though not perfectly inelastic), and the velocity of the block of wood after the...
13 years ago
How does one deal with another runners joy after getting sufficiently skunked? In other words, Can I get some tips on how to be a good sport when I get creamed during a race?
13 years ago
Can I do anything for side cramps during a race?
13 years ago
What is the common difference in the arithmetic sequence 30, 27, 24, 21, 18, ...
13 years ago
How do I balance the following equation by the half-reaction method (it takes place in basic solution)? Fe(OH)2(s) + O2(g) = Fe(OH)3(s) the answer is 4Fe(OH)2(s) + 2H20(l) + O2(g) = 4Fe(OH)3(s) but how do I work it out?
13 years ago
How could you use a precipitation reaction to separate the following pair of cations: K^+ and Hg2 ^2+? (write the formula and net formula for each reactant)? The answer is Hg2 ^2+ (aq) + 2Cl- (aq) = HgCl2(s) but how do I work it out?
13 years ago
A reaction is peformed in which 50 ml of .400M silver nitrate and 75 ml of .100M hydrochloric acid are mixed together. The initial temperature of the solutionn was 25 C and the final temperature was 27.2 C. What is the enthalpy, in kj/mol, for the formati...
12 years ago
Triangle ABC has vertices of A(0,0), B(–4,0)and C(–2,4). The coordinates of each vertex in triangle AEF are multiplied by 3 Is triangle ABC~AEF? Explain.
12 years ago
Joelle set up the following proportion: 4/6 = 5/x. Solve for x. Determine if proportion is correct. If not, explain what is wrong with it.
12 years ago
Explain how water of hydration is related to measurement. Then explain how it is related to the law of definite composition
12 years ago
How can you write a unit rate if at least one term is a fraction? How is this different from writing a unit rate where both terms are whole numbers?
12 years ago
Which of the following sentences contains an italicized word that's used as a predicate adjective? A. Jerry looks into the microscope. B. Jerry looks ill today. C. Jerry looks at the map. D. Jerry looks disdainfully at the pile of laundry. I think it's B.
11 years ago
1. Find the next three terms in the sequence. 30, 22, 14, 6, ... -3, -12, -21 -1, -8, -15** -1, -2, 3, -2, -10, -18 2. Find the next three terms in the sequence. 3, 6, 9, 12, ... 15, 18, 20 15, 19, 20 15, 18, 21 14, 18, 21** 3. Find the next three terms i...
11 years ago
1. Name the coefficients in the polynomial. 4x^2 + 3x - 3 4, -3, -3 4, 3, 4, 3, 3, -4, -3, 2. How many terms are in the following polynomial? 6x^4 + 3x^3 - 2x^2 + 15x - 14 5 4 3 2 3. In the expression -7x - 5x^2 + 5, what is the coefficient of x? 7 5 -5 -...
11 years ago
Please help me to work this out using the inversion method (I'd appreciate if you could provide a step by step breakdown (I don't understand how to do it and my math really sucks!!): Jim spent 1/3 of his salary on food. He spent 1/4 of it on shoes. He has...
11 years ago
If twice the opposite of a number increased by five, then the result is the opposite of a number. What is the number? What is this even asking off me?
11 years ago
Suppose that a 5-foot-long chandelier falls from a 35-foot ceiling and that you are 6 feet tall and standing directly under the chandelier (a) How long do you have to get out of the way when it drops? =-16(t^2)+Vt+h =-16(t^2)+0+(35-5-6) (for the bottom of...
11 years ago
Pepsin,which speeds up the breakdown of protein,is classified as
10 years ago
An experienced mountaineer decided to climb mount everest using the same route in the same season and with similar materials and equipment used by a fatal 1924 expedition . The scientific purpose of such a climb would be to
10 years ago
Choose two famous Americans who lived during the period 1820–1860. • Research the two people you chose. • Analyze your research. • Write a dialogue between the two famous Americans Can somebody help me with this? * Give me ideas for people * Research on t...
10 years ago
A rectangular parcel of land is 20 ft longer than it is wide. Each diagonal between opposite corners is 100 ft. What are the dimensions of the parcel? This is an Example in the book but it does not clarify in the text book, Can anybody please show me how...
10 years ago
If g(x) = x2 + 6x with x ≥ −3, find g−1(55) I need help solving this problem this is an example but it does not thoroughly is explained. :/
10 years ago
Find the inverse function of f. f(x) = 36 − x2 , 0 ≤ x ≤ 6 I can't seem to find this inverse, someone help please?
10 years ago
If g(x) = x2 + 8x with x ≥ −4, find g−1(20)
10 years ago
Find the net change in the value of the function between the given inputs. g(t) = 8 − t2; from −6 to 9
10 years ago
A function f has the following verbal description: "Multiply by 5, add 9, and then take the fifth power of the result." and find the inverse?
10 years ago
f(x) = x2 + 11x, x ≥ − 11/2 find the inverse
10 years ago
population growth model. Can anybody please help me out in trying to solve this problem? It's my homework and I don't seem to understand what I am getting. The count in a culture of bacteria was 400 after 2 hours and 25,600 after 6 hours. (a) What is the...
10 years ago
please help The fox population in a certain region has a relative growth rate of 7% per year. It is estimated that the population in 2005 was 19,000. (a) Find a function n(t) = n0ert that models the population t years after 2005. n(t) = (b) Use the functi...
10 years ago
Can anyone help just can figure it out. Multiple Concept Example 9 provides background pertinent to this problem. The magnitudes of the four displacement vectors shown in the drawing are A = 17.0 m, B = 10.0 m, C = 11.0 m, and D = 23.0 m. Determine the (a...
9 years ago
Air becomes a conductor when the electric field strength exceeds 3.00 × 106 N/C. Determine the maximum amount of charge that can be carried by a metal sphere 8.5 m in radius. The value of the Coulomb constant is8.99×109 N·m2/C2. Answer in units of C. I ha...
9 years ago
A tennis racket is offered at 25% off. Including 7% sales tax, the final price is $67.41. What is the original price, without tax or discount?
9 years ago
Suppose *u* is a quadrant IV angle with cos(u) = 3/5. Suppose *v* is a quadrant IV angle with cos(v) = 12/13. Find the exact value of sin(u-v) I have gotten to sin120cos150 - sin150cos120 but I am not sure I am correct up to that point and I don't know wh...
9 years ago
if 6 workers complete a 1 km of roadway in 4 days. how long would it take for 4 workers to complete 3 km of roadway
9 years ago
The temperature at 6:00 pm was 33°f.over the course of the day, the temperature decreased 5.5°F per hour. What was the temperature at midnight?
8 years ago
Can someone check my answer and let me know me if the are right or wrong. If I wrong can you give me the right answer plz. 1. What is the maximum amount of KCl that can dissolve in 600 g of water? (The solubility of KCl is 34 g/100 g H₂O at 20°C.) * 34 g...
8 years ago
Please help me these are the only two I have left. 17. If the solubility of a gas is 5.6 g/L at 505 kPa pressure, what is the solubility of the gas when the pressure is 1010kPa? * 19. Calculate the [H⁺] for the aqueous solution in which [OH⁻] is 1 x10⁻⁹....
8 years ago
Which statement best describes the framework of government established by the Constitution? A. The three branches of government defer the majority of power to the states B. A system of checks and balances keeps each of the three branches from having too m...
8 years ago
A man will pay RM 46000 to renovate an office . If the construction materials cost 25% more and the labour costs 30% more , he will need to pay RM 58540. Find the original cost of the construction meterial and the cost of labour .(Used equation)
8 years ago
Find the coordinates of the midpoint of (2/3, -3/2)and (8/3, -11/2).help me please
8 years ago
the three vertices of rectangle ABCD are A(2, 1) , B(6, 1) , C(6, 4).Find the coordinates of D. Please help me,thank you.
8 years ago
Which accurately describes the exploration efforts of Francisco Pizarro? A) Pizarro led expeditions to modern-day Pennsylvania and established a Quaker colony. B) Pizarro led a fleet of three ships—the Niña, Pinta, and Santa Maria—to the Bahamas. C) Pizar...
7 years ago
Which best describes the significance of the Treaty of Tordesillas? A) It was the first time in world history that two European nations sought a third party to mediate a dispute regarding foreign lands. B) It was the first time in world history that two E...
7 years ago
Which best describes how European powers of the 16th century used the economic theory of mercantilism to grow their wealth? A) European nations maximized the sale of exports and established tariffs to restrict colonies from trading with foreign nations. B...
7 years ago
Sinea wants to spend money using the same ratios as on her last trip to the carnival. If she spends $28 on games, how much will she spend on souvenirs? Snacks Games Souvenirs Sine $5 $8 $18
7 years ago
Describe how humanist thought led to scientific and artistic innovations during the Renaissance. What were the lasting effects on later societies?
6 years ago
In response to which acts did colonial opposition become violent? (Select all that apply.) Stamp Act Tea Act Townshend Acts Sugar Act I think it is all, except the Townshend Acts.
6 years ago
How many molecules are in 2.10 mol CO2? A. 2.53 x 10^24 molecules B. 3.79 x 10^24 molecules C. 3.49 x 10^24 molecules D. 1.26 x 10^24 molecules*** I think it is D, but can someone check my work? Amount of mols x Avogadro's number (2.10 x 6.02 x 10^23) 1.2...
5 years ago
The stack on the left is made of 15 pennies and the stack of the right is also made of 15 pennies. If the volume of the stack of pennies on the left is 360mm cubed what is the volume of the stack of pennies on the right in cubic millimeters?
5 years ago
X is partly constant and partly varies as y when y =2,x=30 and y =6, x=50 find the relationship between x and y
5 years ago
If a container holds 2.00 gallons of liquid, how many millilitres (mL) of juice will it hold? (1 gallon = 4 quart) (1 quart = 0.9463 L)
4 years ago
while at school you were told that your favourite Uncle who had been overseas for the past four years was coming for holidays. Write a letter to your friend in another school,telling the friend how you hope to spend the time with your Uncle....
4 years ago
In a class of 60 students the number of students who pass biology is 6 more than the number of people who pass at least one of the two subjects and 8 pass both subjects. How many students pass biology How many students pass chemistry How many students pas...
2 years ago
Answers
The following answers were posted by visitors named Lydia.
I know what the definitions are, but there is so much going on in the problem that I've gotten confused- dv- a person's frustration and aggression?, iv-socioeconomic status? experimental group- the two types of cars? no control group?
18 years ago
Thank you so much!!!!!!
18 years ago
oh, but can't you call communism government?
18 years ago
I don't really get the last part...so that times 3600 = Joules gained to melt ice in one hour. Now kg melted = Joules gained/ heat of fusion in Joules/ kilogram Please explain.
17 years ago
What exactly is a tax incentive?
17 years ago
Einstein was offered the presidency of Israel after Chaim Weizmann's death. He declined the position.
17 years ago
thanks
16 years ago
so is it 3 x 8.314 x (16°C + 273)K / (146.065 molecules / 6.02e23) = 2.970841253e25 ? is that right?
16 years ago
Our text does not even refer to multispectral.
14 years ago
metric homework: 30m = 6000 i have converted to cm, in and feet, none get me to 6000 help
14 years ago
c c-
14 years ago
I guess it would be 7 feet on each side. THANKS JOE!!!!!!!!!!!:D
14 years ago
That is the question. I don't get it either.
14 years ago
no?
14 years ago
Ok, I think I understand. so the coordinates of N are (4, -8)
14 years ago
so the answer is yes?
14 years ago
thanks so much!! You are too cool!
14 years ago
Thanks so much! I get it now
14 years ago
makes sence now. thanks so much!
14 years ago
THe cosine law is confusing to me. This lesson gives no examples. The triangle is obtuse?
14 years ago
Sorry, if 6, 10, and 12, and 9, 15 and x are the lengths of the coresponding sides of two similair triangles, what is the value of x?
14 years ago
thanks!
14 years ago
you rock Reiny! And BTW..I call them vertices also...it was a typo. Thanks for your help!
14 years ago
Life saver!! = )
14 years ago
what does 'sqrt' stand for?
14 years ago
I did, but I don't understand what he typed. Thanks
14 years ago
I couldn't find it on any of those sites.
14 years ago
thanks so much!
14 years ago
Thannk you both of you but both answers are incorrect. I can input the answer to see if it is right and both are wrong. We are all missing something. If anyone else wants to try please do!!!
14 years ago
Is the answer 3645.77? Thanks for your help, btw :)
13 years ago
i'm just unsure of what formula i should apply!
13 years ago
so i found a formula: m1v1ix +m2v2ix = m1v1fx + m2v2fx which i rearranged to find v1fx and eliminated m2v2ix because m2v2ix = 0 so the eqn looked like: v1fx = (m1v1ix - m2v2fx)/m1 subbing in i got: [(0.029)(200) - (1.1)(6.25)]/(0.029) which gave the answe...
13 years ago
Thankyou very much!
13 years ago
Thank you. I tried that and got 3 :)
13 years ago
BD = 4 DA = 5 DE = 6 Solving for x 1. Joelle’s proportion is correct. 2. Joelle’s proportion is not correct because BD, which is 4, corresponds proportionally to BA, which is 9, not 5. 3. Joelle’s proportion is not correct because DE, which is 6, does not...
12 years ago
(a) use d=vi*t+0.5*a*t^2 manipulate the equation to solve for t 210 m = (23 m/s)t+0.5(0.150 m/s^2)*t^2 t = 9.41 s (b) v = d/t = 210 m/ 9.41 s = 22.3 m/s I'm still trying to figure out the rest...
11 years ago
I had this test these answers are correct you'll get 100% hope it helps 1).1,256ft2 2).4,187ft3 3).615cm2 4).1,436cm2 5).8
11 years ago
In letter A. into is italicized In letter B. ill is italicized In letter C. at is italicized In letter D. disdainfully is italicized.
11 years ago
Sorry! How about now? 2. B 3. A 4. D
11 years ago
Maths lit geography agricultural science life orientation
11 years ago
The first 1980's school technology event and date .
11 years ago
Oh thank that did help :D
11 years ago
1.a 2.
10 years ago
C and A... just took the test
10 years ago
nevermind I got it
10 years ago
O tshwanetse go tlhompha setso sa gago
9 years ago
Agreed, "and his name is" is 100% correct! Thanks my dude!
8 years ago
I dont know the answer but I hate to be mean, but I wouldn't trust "Boonk gang" I asked a question and he responded with "follow me on isntagram bihhhh @cltjojo" That's all I had to say, sorry and bye
8 years ago
Awesome thanks!
8 years ago
Also, sorry about that person who had commented earlier who wasn't actually answering. I don't know who they were.
8 years ago
I have the same problem to figure out, but mine gave this equation: Na + H20 -> H2 + NaOH So I was just wondering what I should do since mine aren't the exact same.
7 years ago
Never mind. I figured it out.
7 years ago
can I use google drive for create a flowchart
7 years ago
7. A
7 years ago
This is totally wrong how is it that 12/3 equals to 3
7 years ago
Thank you. :)
7 years ago
So what is the correct answer? Its been two years.
6 years ago
Nevermind, I checked again and I found the answer.
6 years ago
So whats the answer?
6 years ago
What does changelength/length mean
6 years ago
1. obsolete 2. elicit 3. acclaim 4. engross 5. adjacent 6. escalate 7. terminate 8. methodical 9. tangible 10. exploit Those are my answers for the real version of this paragraph, Final Check: A Cruel Sport Search --> Chapter 3: 10 words in Context or the...
6 years ago
I believe it would look something like this... Fg = (Gm1m2)/d^2 m1= 7.35 m2 = 47 d^2 = 3.84 Fg = (7.35)(47)/3.84 89.9 N
5 years ago
Mark the dark, fold the dart, start sewing and back stitch
5 years ago
Firstly a base is a substance which will neutralize an acid to yield salt and water only.Tetraoxosulphate(vi) acid in an equation is H2SO4
5 years ago
Here are the right answers (Starting with number 3) 3: B 4: A 5: D 6: B 7: C 8: D 9: B 10: B 11: C 12: D 13: D 14: A 15: B 16: A 17: C 18: D 19: A 20: D 21: D 22: D 23: B 24: A 1, 2, and 25 you have to do on your own. I hope you do good! ;)
4 years ago
Its C. The bowling ball would weigh less on the moon, but its mass would stay the same.
4 years ago
its A. a controlled experiment.
4 years ago
that is what i thought
4 years ago
It is the year 2021 and this is still a relevant physics question… Holy Hell
4 years ago
None
4 years ago
first start with the address then date introduction body conclusion salutation
4 years ago
Give me the correct answer
4 years ago
What are the careers in Home Economics
4 years ago
If the 1st term of an A.P Is 6and the 4th term is 12, find the common difference
3 years ago
To know the answers
3 years ago
I want answer to the question l asked
3 years ago