Monday

July 28, 2014

July 28, 2014

Number of results: 17,498

**Math**

I am doing Direct Variation in math. I dont understand how to do it. It would be very helpful if you helped me with these problems: Is each equation a direct Variation? If it is, find the constant of variation: y=3/5x -3x+2y=0 -5x+2y=9 8x+4y=12
*April 8, 2008 by Kirsin*

**Algebra 2**

I am trying to figure out if these problems are Direct Variation, Inverse Variation, or Neither. Could someone please check my answers? m=-5p Direct c=e/-4 Neither c=3v Direct r= 9/t Inverse n=(1/2)f Direct u=I/18 Neither d=4t Direct z= -0.2/t Inverse
*January 6, 2014 by Jane*

**Math- steve or ms. sue**

does the data in the table represent a direct variation or an inverse variation? x 2 4 8 12 y 4 2 1 2/3 Choices: inverse variation; xy = 8 direct variation; y = 8x inverse variation;y/x = 8 *direct variation; y = 8/x Thank You.
*April 17, 2013 by James*

**algebra**

Find the variation constaant and an equation of variation where Y varies directly as X and Y = 72 hen X = 8 The variation constant is K = ? The equation of variation is Y = ? I think that K = 9 but not sure I don't have a clue about the rest.
*August 17, 2010 by Lori*

**Algebra 2**

Is the relationship between the variables in the table a direct variation, an inverse variation, both, or neither? if it is a direct or inverse variation, write a function to model it. x 2 5 15 20 y 20 15 2 2 a. inverse variation;y=10/x b. neither c. direct variation; y=x+10 d...
*May 19, 2014 by kathy*

**biology**

Could someone please check this definition and tell me if it's good or if it's too much (whatever) Variation=the existence of differences between the individuals in a population. It can be described as continuous or discrete. Examples of discrete variation are gender and eye ...
*January 15, 2008 by Anonymous*

**biology**

Could someone please check this definition and tell me if it's good or if it's too much (whatever) Variation=the existence of differences between the individuals in a population. It can be described as continuous or discrete. Examples of discrete variation are gender and eye ...
*January 15, 2008 by Anonymous*

**Algebra Variation Constant**

What does this mean? Do I graph this or what? Find the variation constant and an equation of variation where y varies directly as x and y=12 when x=2 The variation constant =? The equation of variation is y=?
*February 27, 2008 by Micah*

**Variation-Check Problems**

Can you please check my answers? Thanxs! Write an equation that expresses the relationship. Use k as the constant of variation. 20. f varies jointly as b and the square of c. -I got: f=kbc^2 22. r varies jointly as the square of s and the square of t. -I got: r=ks^2t^2 Find ...
*October 8, 2007 by Soly*

**algebra**

find the variation constate and an equation of variation where y varies inversely as x and y=1 whenx=6 what is the variation constant is
*December 15, 2011 by karon*

**math**

Each point is included in a different variation. Which variation is the constant of variation 3/5 a -3,-5 b -3,5 c -2,-3 d 15,9 plz explain. thanks
*March 20, 2009 by Anonymous*

**math**

Each point is included in a different variation. Which variation is the constant of variation 3/5 a -3,-5 b -3,5 c -2,-3 d 15,9 plz explain. thanks
*March 21, 2009 by Anonymous*

**Algebra**

Can you please help me with these Algebra word problems? Complete the following word problems. 1. Tell whether the table represents inverse variation. If so, write the inverse variation equation and solve for y when x = 4. Show work that supports your conclusions. Table: ...
*March 28, 2014 by Student*

**Algebra**

Find the variation constant and an equation of variation where Y varies directly as X and Y=60 when X=10 k=variation constant y=equation of variation Still do not understand..please..
*May 5, 2012 by Maria1*

**algebra**

Tell whether equation represents direct variation. If so, identify the constant of variation 1. Y=8x Ans: yes, it represents direct variation because its in the form Y=kx. Constant of variation: 8 2. Y=2x+1 3. 3x+y=6 Please help, not too sure if I am understanding this ...
*January 4, 2013 by **LB***

**algebra**

Find the variation constant and an equation of variation where y varies directly as x and y =4 when x=1. the variation constant is K= the variation constant is y =
*June 3, 2012 by plz hlp*

**Algebra genius?**

Find the variation constant and an equation of variation where Y varies directly as X and Y=60 when X=10 k=variation constant y=equation of variation
*May 5, 2012 by Maria1*

**Variation**

Could you please help me with the following question? Find the variation equation for the variation statement. 31. z varies jointly as y and the cube of x; z=96 when x=2 and y=6 (I dont understand this one. My answer choices are: a.y=2x^3y,b.y=2xy^3, c.y=-2x^3y, or d. y=-2xy^3)
*October 10, 2007 by Soly*

**Variation Problem**

Could you please help me with the following question? Find the variation equation for the variation statement. 31. z varies jointly as y and the cube of x; z=96 when x=2 and y=6 (I dont understand this one. My answer choices are: a.y=2x^3y,b.y=2xy^3, c.y=-2x^3y, or d. y=-2xy^3)
*October 9, 2007 by Soly*

**Need help with variation**

Could you please help me with the following question? Find the variation equation for the variation statement. 31. z varies jointly as y and the cube of x; z=96 when x=2 and y=6 (I dont understand this one. My answer choices are: a.y=2x^3y,b.y=2xy^3, c.y=-2x^3y, or d. y=-2xy^3)
*October 9, 2007 by Soly*

**algebra**

Find the variation constant and an equation of variation where y varies directly as x and y=16 when x=8 The variation constant is k=? The equation of variation is y=?
*October 22, 2010 by ASHLY*

**algebra**

Could someone show me how to solve this joint variation problems? Y varies jointly as x and y and inversely as w. Write the appropriate combined variation equation and find z for the given values of x, y and w. z=15 when x equals three, y equals four, and w equals nine, x ...
*December 8, 2008 by Juliette*

**algebra**

1. Find the variation constant and and an equation of variation where y varies directly as x and y y=42 when x=6 variation constant is K= equation of variation is y= 2.Jack usually mows his lawn in 6 hours. Marilyn can mow the same yard in 4 hours. How muschtime would it take ...
*January 3, 2012 by Pinky P*

**algebra**

find the variation constant and an equation of variation where y varies directly as x and y=35 when x=5 the variation constant is k=
*December 13, 2011 by karon*

**Algebra**

This is about direct variation. The area a painter can paint varies directly with the amount of time he works. One morninig, he painted 204 ft² between 8 a.m. and 12:15 PM. Write a direct variation equation to describe the area y covered in x hours. The forumlua for direct ...
*November 17, 2010 by David*

**math**

This is about direct variation. The area a painter can paint varies directly with the amount of time he works. One morninig, he painted 204 ft² between 8 a.m. and 12:15 PM. Write a direct variation equation to describe the area y covered in x hours. The forumlua for direct ...
*November 17, 2010 by Jeff*

**Math**

A farmer’s harvest in bushels varies directly with the number of acres planted. A. Express in sentence form what this means to the farmer. B.Translate the variation statement into the corresponding variation equation. C. If 8 acres can produce 144 bushels, find the constant of...
*April 21, 2012 by Veronica*

**STATS**

The error calculated by ANOVA includes: a) The variation due to experimental error b)The variation due to the influence of third variables c)The variation due to the influence of individual differences between the values d) a, b and c
*October 4, 2013 by MArtina*

**MATH Algebra**

How do I find the variation constant and an equation of variation where y varies directly as x and y =70 when x=7
*September 12, 2009 by Anonymous*

**math**

Find the variation equation for the variation statement. z varies directly as x and inversely as y; z = 3 when x = 24 and y = 40
*March 20, 2010 by Anonymous*

**math**

Why does inverse variation not hold (as x increases y decrease) when the constant of variation is negative?
*May 21, 2010 by Stan*

**algerbra**

find the constant of variation for each direct variation. 10y=13x and f(x)=4.5x and x+y=0
*November 26, 2007 by dan*

**algabra**

find the constant of variation for each direct variation. 10y=13x and f(x)=4.5x and x+y=0
*November 27, 2007 by michael*

**Algebra**

Find the variation constant and an equation of variation where y varies directly as x and y = 20 when x = 10
*April 17, 2008 by Mary*

**Science**

how do you read graphs showing direct variation and inverse variation??
*January 29, 2009 by Angie*

**Science**

how do you read graphs showing direct variation and inverse variation??
*January 30, 2009 by Angie*

**Algebra**

Find the variation constant and an equation of variation where y varies directly as x and y=50 when x=10
*August 12, 2010 by Tim*

**algebra 1 8th Grade**

Find the constant of variation for the direct variation. F(x)=4.5x
*January 6, 2011 by shanequa*

**math**

Which of the following is the equation of a direct variation that has a constant of variation equal to -? y = x - -y = x y = -2x y = -x
*May 19, 2011 by Daniel*

**algebra**

find the variation constant and an equation of variation where y varies directly as x and y = 54 when x =x6
*April 15, 2012 by Terry*

**algebra**

Find the variation constant and a equation of variation where y varies inversely as x and y=1 when x=15
*June 1, 2012 by Randy*

**Algebra 2**

Ordered pair is from an inverse variation: (3,1/3) how do I find the constant of variation?
*April 22, 2014 by Linda*

**Algebra-HELP**

x and y vary directly. If y = 24 when x = 8, what is the variation constant and write the variation equation. explain work
*November 4, 2011 by Angelina*

**algebra**

Tell whether equation represents direct variation. If so, identify the constant of variation
*January 4, 2013 by **LB***

**math**

what is the different between direct variation and Inverse variation,, pls help i have a quiz tomorrow
*September 12, 2011 by raffael*

**math**

Write the variation and find the quantity indicated. F varies jointly as q1 and q2 and inversely as the square of d. If F=12 when q1 =3, q2=9 and 9=3 The variation of F=
*August 27, 2013 by misty*

**BIOLOGY**

Is eye color a discontinuous or continuous variation? Why is everyone saying that it's a discontinuous variation, when you obviously have a gradation of different colors around the world in the human population, and it's a polygenic trait determined by many genes! So shouldn't...
*November 27, 2011 by Dont delete the question*

**Microeconomics**

What 's the difference between Compensated Variation (CV) and Equivalent Variation (EV) ?
*October 23, 2007 by Tri*

**Algebra 1**

Is each equation a direct Variation? If it is, find the constant of variation: y=3/5x -3x+2y=0 -5x+2y=9 8x+4y=12
*April 8, 2008 by Kirstin*

**Algebra**

Find the constant of variation for the quadratic variation. 6y = 4x2 A. 4/9 B. 2/3 C. -2 D. 3/2
*January 16, 2013 by Becka *

**college algebra**

Find the variation constant and write a formula that expresses the indicated variation. c varies inversely as d, and c=5 when d = 2.
*April 23, 2010 by BJ*

**BIo**

How do segregation of alleles and independent assortment work to produce genetic variation? Why is variation important for the process of evolution?
*December 9, 2008 by Anonymous*

**College Algebra**

What is the difference between direct variation and joint variation and please put into words an example.
*April 6, 2011 by Kathy*

**Inverse/Direct Variation**

Is this an example of inverse variation, direct variation, or neither? Because, on average, Linda makes 60% of the free throws she shoots in a basketball game, the number of points she scores on free throws depends on the number of shots she gets.
*September 1, 2013 by Alex*

**Business Statistics**

If the total variation in y values is 200, and the variation explained by regression line is 180, then the coefficient of determination is equal to __________. A) 1.11 B) 0.90 C) 0.81 D) 1.21 I picked D 1.21
*March 15, 2009 by Stuart*

**Algebra**

Hi! Can you please re-check my answers. Mt teacher said some of them are not right but when I do it again, I still come up with the same answer. This is about Variations. Thanks! 1. What kind of variation equation is a=kbcd --> my answer is joint variation 2. If the joint ...
*December 12, 2013 by McKenna Louise*

**Check my answers. Algebra**

Can you please check my answers? Thanxs! Write an equation that expresses the relationship. Use k as the constant of variation. 20. f varies jointly as b and the square of c. -I got: f=kbc^2 22. r varies jointly as the square of s and the square of t. -I got: r=ks^2t^2 Find ...
*October 10, 2007 by Soly*

**Statistics **

Using advertised prices for used Ford Escorts a linear model for the relationship between a car's age and its price is found. The correlation coefficient is - 0.933 Determine R2 and interpret this statistic. A) R2 = 93.3% which means that 93.3% of the variation in car price is...
*May 25, 2013 by Katie*

**statistics defns**

What is the coefficient of variation and how do I calculate it from a dataset? coefficient of variation is simply the standard deviation divided by the mean.
*March 1, 2007 by weldon*

**Algebra**

This is my third question about direct variation. For this problem, tell whether each relationship is a direct variation. Explain. x | -1 | 5 | 8 | y | -1.5 | 7.5 | 12 |
*November 17, 2010 by David*

**Differential Equations**

solve using variation of parameters: y"+36y=[csc(6t)]^2 I don't understand variation of parameters very well at all.
*April 24, 2012 by Rosy*

**Math: Direct Variation**

what are the formulas that illustrates direct blinear variation ?? please help me !! i can't find any formula !! .. humpf .. :(
*November 3, 2008 by cherry*

**Algebra**

This is question 2 about direct variation For this problem, tell whether each relationship is a direct variation. Explain. x | 8 | 0 | -5 | y | 13 | 5 | 0 |
*November 17, 2010 by David*

**Algebra**

Each ordered pair is a solution of a direct variation. Write the equation of direct variation. (2,10) (8,2) (7,21) (2,-16) Please Help!
*December 2, 2010 by Caitlyn*

**direct variation or neither**

Tell whether the equation represents direct variation or neither, 7=3x+2 represents A) represents inverse variation B) represents direct variation C) represents neither.
*August 19, 2011 by Tiara*

**MATH-direct variation**

Which of the following represents a direct variation function? The answer coices are A)d=2r B)y=9x+1 C)y=-3 D)a=1/2h(b1+b2)
*June 10, 2011 by chelsea*

**Statistics**

Which, if any, of the values listed below for a correlation coefficient indicate a situation where more than half of the variation in one variable is associated with variation in the other variable? -.7 1 .3 .6 .9 I was thinking B
*November 12, 2012 by Mike*

**variation**

Can you please check my answers? Thanxs! Write an equation that expresses the relationship. Use k as the constant of variation. 20. f varies jointly as b and the square of c. -I got: f=kbc^2 22. r varies jointly as the square of s and the square of t. -I got: r=ks^2t^2 Find ...
*October 9, 2007 by Soly*

**variation**

Can you please check my answers? Thanxs! Write an equation that expresses the relationship. Use k as the constant of variation. 20. f varies jointly as b and the square of c. -I got: f=kbc^2 22. r varies jointly as the square of s and the square of t. -I got: r=ks^2t^2 Find ...
*October 9, 2007 by Soly*

**Algebra**

Myra uses an inverse variation function to model the data for the ordered pairs below. (2, 30), (3, 20), (4, 15), (5, 12), (6, 10) Which statement best explains whether an inverse variation function is the best model for the data? An inverse function is the best model because ...
*July 7, 2014 by Melanie*

**variation**

x is partly constant and partly varies as y when y=5, x=7,and y=7,x=8.find the law of variation and also x, when y=11
*January 25, 2014 by agbaje yusuf*

**Statistic**

Examine the three samples listed here. Without performing any calculations, indicate which sample has the largest amount of variation and which sample has the smallest of variation. Explain how you produced your answer. a) 17 29 12 16 11 b) 22 18 23 20 17 c) 24 37 6 39 29
*January 31, 2011 by Denise*

**direct variation**

could someone please help me with these problems i am having trouble. If y=36 when x =6 find x when y = 42 If y=-18 when x=6 find x when y=6 If y =12 when x= 15 find x when y =21 If y=-6.6 when x=9.9 find y when x =6.6 If y=6 when x=(2/3)find x when y=12 those are the ...
*September 13, 2006 by Teri*

**Math**

how do you find the constant of variation k for the direct variation? for example, 4x + -6y. how do you find k?
*January 30, 2009 by Angie*

**math**

The distance d when a spring is stretched by a hanging object varies directly as the weight w of the object. If the distance is 34 cm when the weight is 3 kg, what is the distance when the weight is 9 kg? 22. Find the variation constant and an equation of variation where y ...
*May 15, 2011 by algebra*

**Algebra check+help?**

For problems 1 and 2 write Y as a function of X 1) 12=9x+3y - I think you would subtract 9 from the 12.. but I'm not really sure because you can't add/subtract x's and y's from regular numbers. 2) -2x+3y=9 Same problem as above.. Can someone please explain to me how to do ...
*October 26, 2010 by Allyson*

**Algebra 1**

How do you find the constant the variation andthe slope of the direct variation if y and x aren't given, and only the middle number is?? OK...clue me in on what you mean by the "middle" number.
*November 27, 2006 by heather*

**Math**

I am confused with this problem, A 14.1 oz box of cereal costs $2.89. Find the constant of direct variation I dont know how to figure out the constant of direct variation and i need help.
*February 29, 2012 by Anonymous*

**math**

Hi, How do I find the coefficient of variation? I found the sample variance and the standard deviation for the problem I'm trying to solve, but I can't find the coefficient of the variation
*May 3, 2009 by Stella*

**math**

Hi, How do I find the coefficient of variation? I found the sample variance and the standard deviation for the problem I'm trying to solve, but I can't find the coefficient of the variation
*May 3, 2009 by Stella*

**Variation**

I have few questions that I need checked please and could you help me with the last question? Write an equation that expreses the relationship. Use k as the constant of varaiation. 1. s varies directly as h -I got: s=kh 2.a varies directly as the square of m. -I got: a=km^2 ...
*October 8, 2007 by Soly*

**Algebra**

For this problem, tell whether each relationship is a direct variation. Explain. x | -3 | -6 | -9 | y | 18 | 36 | 54 | My teacher didn't really explain direct variation very well, but i did catch that you put x over y. (Hopefully this helps)
*November 17, 2010 by David*

**8th grade**

i have a homework assignment i do not know how to do. i was out sick so i have not learned this. hear is the question......y varies directly as x. find the constant of variation and write an equation for the direct variation. question 1: y=15 when x=5
*January 14, 2009 by gavyn*

**Math**

I need the answers and the work shown steb by step today pls^^ For each direct variation find the constant of variation.Then find the value of y when x= -5 1.y=2 whne x=7 2.y=-2 when x=2 3.y= 17 when x=-4 y varies directly with x. 1.if y=6 when x=2,find x whn y=12 2.if y=7 ...
*October 6, 2009 by alex*

**Statistics **

Examine the three samples listed here. Without performing any calculations, indicate which sample has the largest amount of variation and which sample has the smallest amount of variation. Explain how you produced your answer. a. 17 29 12 16 11 b. 22 18 23 20 17 c. 24 37 6 39 ...
*September 26, 2010 by Rhea*

**Algebra 1: 8th Grade**

Explain why the graph of an equation in the form y=kx always goes through the origin. Give an example of a graph that shows direct variation and one that does not show direct variation. I don't really get the question.
*October 7, 2008 by Joy*

**biology/honors**

Charle Darwin made theory of natural selection but couldnt explain why there is variation within populations. Explain two reasons why there is variation within population ? PLEASE help me answer this question is for my test
*May 20, 2011 by mike*

**englsih**

As my english is not good, could you please check the grammar of the following sentence. Thank you!!! What they care about most are money, stock prices and problems concerning about finance. They may never notice that there are lots of social problems which actually need their...
*August 11, 2013 by russian pilot*

**English**

Now, let's check how well you can use the expressions you've learned. I will distribute handouts. You have to solve the problems. Are you finished? Then, I'll check the answers. Look at the answers on the blackboard. Check your answers. How many students have 10 points? Are ...
*May 27, 2012 by rfvv*

**Physics Light and Color**

The depth perception cue employed in the old-fashioned stereoscopes but not in plain photographs is: (a) variation in color, (b) variation in sharpness, (c) binocular disparity, (d) previous knowledge. (Choose one.)
*December 6, 2010 by Amanda*

**drwl / bobpursley please check**

I had posted three questions at 1:48pm, 2:40pm and 2:41pm and I am having problems with them. Can you please check them for me. Thanks! Repost if you are not satisified with the responses.
*March 13, 2007 by Mary*

**Algebra 2**

Let (x1,y1) be a solution, other than (0,0), of a direct variation equation. Write an second direct variation equation whosegraph is perpindicular to the graph of the first equation.
*October 12, 2010 by Bob*

**Algebra 1**

I need some help with Direct linear variation. I had tooken a test, and one of the questions on there said " Which equation represents a direct linear variation?" The answers were A ; y = 1/x B ; y = x + 2 C ; y = x squared D ; y = 1/2x . I choose B . But now it says i got ...
*February 15, 2012 by Stephanie*

**7th grade math check**

Ok I was wondering if you could check these 3 problems please. I am suppose to set these equations equal but I am not sure if did them right. I think I accidently solved these systems as substitutions. The answers are suppose to be in coordinate pairs. 1) x - y = 11 -3x + y...
*April 12, 2012 by saranghae12*

**science**

Q: which of these conditions is least likely to cause a species to become extinct due to environmental changes? A: -less genetic variation -more genetic variation -specific food preferences -more competition for food
*March 3, 2013 by kate*

**Please check-Reiny**

Could you check these two problems? 3sqrt (y+2) = 3 is y = 25 Answers were: true or false I said true because I did it like this Square both sides=y + 2 = 3^3 y+2 = 27 y = 25 and sqrt (2y-6) = 3-y for y answes are: no solution 5 3,5 3 I said 3 because I did it like this: 8y -...
*October 12, 2010 by Michelle*

**Variation**

Please check my work, the answer I am suppose to get is 17.5, but instead I got 2.5. Solve the problem. 66. y varies jointly as a and b inversely as the square root of c, y=24 when a=6,b=4, and c=49. Find y when a=2, b=5, and c=16. -I got: y=kab/ sqrt of c, y=2*5/ sqrt of 16, ...
*October 12, 2007 by Soly*

**Algebra**

Write an equation of the direct variation that includes the point (–3, –9). Direct variation can be expressed with this equation: y = kx Using your point, let's find k. -9 = -3k 3 = k Equation: y = 3x Thanks it makes sense
*March 20, 2007 by Todd*

**Precalculus problems check?**

Did I do these two problems right? P(1-sqrt2) = 8x - 4x^2 P(1-sqrt2)= -4 P(2/x)= 8x - 4x^2 P(2/x) = x-1 I think when the answers are plugged back in, the equation is supposed to equal zero, but I don't get this; however, I always redo each problem with different methods and ...
*September 1, 2009 by Emily*

**Biology- Please Check**

Crossing over (genetic recombination) and independent assortment result in A.) genetic variation in the gametes B.) four identical gametes C.) two diploid cells D.) a very large number of mutations
*March 20, 2014 by Cassie*

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