Thursday

April 17, 2014

April 17, 2014

Number of results: 214,278

**math**

by how many order of magnitute is the speed of light greater than the average speed of grey sound? Rose Diamond when he set the hight gate track 710 m record of for this 47.43 sec in April 2003 710m/47.43s = close to 15 m/s. The speed of light is 3 x 10^8 m/s or 30 x 10^7 m/s...
*Monday, October 16, 2006 at 9:56pm by math*

**how would I....**

how would I express the repeating decimal representaion of 1/9 as an infinite series using sigma notaion? Limit of (as n-> infinity) (Sigma) 0.1 + (0.1)^2 + (0.1)^3 +... (0.1)^n = 0.11111.... = 1/9 I think drwis did this right, It looks like lim n->infty Sigma i=1 to n 10-i
*Thursday, October 19, 2006 at 4:53pm by math!*

**me**

(4-y^2)/(y-2) = y/2 (4-y^2)/(y-2) = y/2 4 - y^2 = (y*(y-2))/2 4 - y^2 = (y^2-2y)/2 8 - 2y^2 = y^2 - 2y 3y^2 - 2y - 8 = 0 (keep the above equation in mind) quadratic formula: (-b +/- sqrt(b^2 - 4ac))/2a now solve by plugging in the appropriate numbers and choose (normally) the ...
*Monday, October 30, 2006 at 8:28pm by math*

**literature - Don Quixote or Middlemarch**

which one is better? In my opinion, for a high school student, Don Quixote reads better.
*Sunday, November 5, 2006 at 8:50pm by math*

**math**

the price of is 150/m3. the price is raisd by 10% each year. wat will the price of oil be at the end of two years? what is 1.1^2 * 150? if i understand the question the answer would be 181.5 The question isn't exactly clear how the 10% is done. If it is raised by 10% of the ...
*Wednesday, December 20, 2006 at 12:17am by math*

**Check!!!**

okay so the question is: A unit circle center at the origin undergoes a series of transformations. The equation of the resulting graph is (x-3)^2+ (y+4)^2= 25 describe the transformation the unit circle underwnt Answer: The original circle was centered at the origin and had ...
*Wednesday, February 14, 2007 at 3:54pm by math*

**Matthew**

Simplify: 5x{24-19)x[25+23)divided by 12-(9-7)} Please help! Subject is algebra. sorry- please help! Am I working the problem correctly? IS THE ANSWER 50? 5x{24-19)x(25+23)divided by (12-(9-7)) = (5x5x48)/(12-2) = (25 x 48)/10 = ? No, the answer is not 50. As best as I can ...
*Wednesday, February 14, 2007 at 5:54pm by Math*

**math**

How do I change a fraction to a percent? Like 9/15 to a percent for instance. put 9/15 in your calculator and hit equals
*Wednesday, February 14, 2007 at 7:53pm by math*

**Sandra**

2/7 divided by 6 I know to invert the fraction, then what? Please help! 2/7 divided by 6/1 = 2/7 multiplied by 1/6 Multiply and then reduce. http://mathforum.org/library/drmath/sets/select/dm_divide_fract.html =)
*Monday, February 19, 2007 at 8:56pm by Math*

**Bailey**

I can't figure this out. Please help! Estimate 16 20/21 * 28 3/7 - 4 13/25 + 8 2/47 as a whole number or as a mixed number where the fractional part is 1/2 Someone please help! 17 * 28 - 5 + 8 would give you an estimate. However, since you don't have parentheses (), I don't ...
*Tuesday, February 20, 2007 at 9:53am by Math*

**Math**

How do you find critical points in a function? For example, find the critical points in f(x)=12+2x^2-x^4 please help me somebody find the derivative and set it equal to zero
*Wednesday, February 21, 2007 at 6:53pm by Math*

**Math+ confused?!**

I had to solve for this: 1) choose 4 people from a class of 12 My answer: n=12 r=4 12C4 = 495 2) chosse 8 people from a class of 12 my answer: n=12 r=8 12C8 = 495 why is it that they both eqaul 495? maybe I am doing it wrong but I am confused why do they both equal 495? They ...
*Tuesday, May 15, 2007 at 2:11pm by Math*

**calculus**

equation of the normal to the graph of f(x)= x/2x-3
*Monday, November 5, 2007 at 6:30pm by math*

**math**

The capacity of an elevator is either 15 children or 11 adults. If 8 children are currently in the elevator, how many adults can still get in?
*Thursday, December 6, 2007 at 10:50am by math*

**math**

suppose you have a pipe with circumference of 8 cm and length equal 3 cm and that 10 turn of a wire are wrapped about the pipe. what is the length of the wire
*Friday, December 7, 2007 at 1:49pm by math*

**finance**

What does the shape of a treasury bond yield curve tell you about expected future inflation?
*Monday, March 10, 2008 at 8:49pm by math*

**math**

create a 3 d shape that has two pickels
*Thursday, May 29, 2008 at 8:31pm by math*

**math**

help me solve these problems please 1 1/2 - 3 2/5 + 8/15 - 2 2/3 (-4 7/12) - (-3 2/3)- 1 /24 + 2 5/8 -3 1/2 - (- 1 5/6) + (-1 1/12)+ 2 3/4 8-5*2+6/(-2) this i think i can get the right answer 8-10+(-3) -2+(-3)=-5 is that the rite answer 2 7/9/ (-1 4/81)- 11/17 -1.5 / (-3) + (-...
*Sunday, August 3, 2008 at 5:40pm by math*

**math**

Convert: 2.7x10^-3 kg/cm^3 to kg/m^3 0.81 g/cm^3 to kg/m^3
*Tuesday, August 26, 2008 at 10:17am by math*

**arnold**

how do i solve this? x +(12/x)=12 and (5/x+4)=4+(3/x-2)
*Thursday, August 28, 2008 at 6:35pm by math*

**arnold**

thank-you. i see how to do it now
*Thursday, August 28, 2008 at 6:35pm by math*

**kayla**

A sugar molecule has twice as many atoms of hydrogen as it does oxygen and one more atom of carbon that oxygen. If a sugar molecule has a total of 45 atoms, how many are oxygen and how many are hydrogen?
*Tuesday, September 2, 2008 at 6:13pm by math*

**Sally**

I have a factoring question; what is 8a^2-8a-30? I've been working on this for a while and I think I understand factoring, but I'm not getting the right answer, which is supposed to be 2(2a-5)(2a+3). Any help would be so appreciated! :)
*Tuesday, September 23, 2008 at 6:50pm by Math*

**math**

100x2 + 90x - 90x - 81 = Answer:100x2 - 81
*Thursday, October 2, 2008 at 12:51am by Math*

**Algebra 1**

-13=2b-b-10 1st step. (2b-b) = -13=b-10 2nd step- Make sure the variable (b) is on one side. We must add 10 to each side to make sure that variable (b) stands alone. -13 = b - 10 +10 = b + 10 ----------- -3 = b
*Wednesday, October 1, 2008 at 11:26pm by Math*

**or pre-algebra**

(a)on july 15,2007 , the national debt of the united states of americawas a little more than 8.8 trillion dollars. at that time, the population of the united states was a little more than 300 million. approximately how much money would each of the 300 million people living in ...
*Thursday, November 13, 2008 at 11:43pm by math*

**math**

can someone give me proof that a negative number times a negative number is a positive number I've always been told this in like seventh grade that it is but havne't been given any proof
*Friday, January 30, 2009 at 3:42pm by Math*

**Algebra 2**

i'm not sure how to evaluate this (6)/(X^-4) + (5)/(X^-2)
*Sunday, February 1, 2009 at 10:30pm by Math*

**jess**

Solve: 8p-4 = 4(2p-1) Isn't it equals to 0?
*Tuesday, February 10, 2009 at 9:02pm by Math*

**percentage**

a student has an avg of 57%. he has 2 test left which was are both worth 5% and 1 assigment worth 1 %. he also has 1 one big asigment worth 5%. how much would he need minimun in all these to get a 80% avg by the end of it?
*Tuesday, April 21, 2009 at 6:28pm by math*

**Math**

I need help with these three problems. I cant figure them out. 3. The difference of two numbers is tripled. The result is decreased by 1. If the lesser of the two numbers is 4 the result is 8.3. Find the greater number. 4. A number increased by 21 is ewuivalent to half the ...
*Tuesday, May 5, 2009 at 7:36pm by Math*

**AL**

The instructions to my book work says for the data in each table, tell whether y varies directly with x. If it does write an equation fo rthe direct variations. Well how do you do that exactly. Thanks you for your help.. Please help me.
*Tuesday, May 12, 2009 at 5:02pm by Math*

**Math**

I'm trying to create a graph in excel and how come when i put this into my graph (21.8(151.1)^-1)100 I get undefined and all my calculators on my computer also give me undefined however my ti 83 gives me an answer around 19
*Thursday, June 4, 2009 at 8:51pm by Math*

**Math**

now i'm trying to find a percent
*Thursday, June 4, 2009 at 8:51pm by Math*

**Compound Interest : Future Value and Present Value**

Payments of $1800 and $2400 weere made on a $10,000 variable-rate loan 18 and 30 months after the date of the loan. The interest rate was 11.5% compounded semi-annually for the first two years and 10.74% compounded monthly thereafter. What amount was owed on the loan after ...
*Friday, July 24, 2009 at 1:22am by Math*

**Compound Interest**

A bank offers a rate of 5.3% compounded semi-annually on its four year GICs(Guaranteed Investment Certificates). What monthly and annually compounded rates should it quote in order to have the same effective interest rate at all three nominal rates?
*Friday, July 24, 2009 at 1:25am by Math*

**Chopsticks**

solve the equation for x using the quadratic formula: 3x^2 + 8x + 1 = 0 Work: I tried factoring it, but I can't do it. (3x + ?)(x + ?) I'm thinking the ? = 1 but that won't work.
*Monday, August 31, 2009 at 10:55pm by math*

**Chopsticks**

Ahh wait I got it. I was thinking something weird. I jus thave to plug it in
*Monday, August 31, 2009 at 10:55pm by math*

**help**

Find the measures of two supplementary angles m and n m=6x+3 n=2x-7
*Wednesday, September 30, 2009 at 10:30pm by math*

** math**

write a sequence for the rule. 1. a - 4 = b 2. a +(2-1) = b 3. a - (3-3)= b 4. a +(4 - 3) = b 5. (a + 2) - 2 = b 6. (a + 4) - (2 -1) = b
*Tuesday, October 13, 2009 at 3:27pm by math*

**algebra**

first mutibly the base with the power.
*Tuesday, October 13, 2009 at 3:21pm by math*

**Calculus**

What is the area of the largest rectangle that can be placed in a 5-12-13 right triangle (as shown)?
*Monday, October 26, 2009 at 6:26pm by math*

**3rd grade**

When you write 2,500 in expanded form, how many addends do you have? 2,000+ 500+0+0 ??
*Wednesday, October 28, 2009 at 7:36pm by Math*

**kaley**

find the points at which the graph of 4x^2 - 4x + 12y^2 -6y = 10 has a vertical and horizontal tangent line. For the vertical only solve for y and for the horizontal only solve for x. I got the deriviative to be: (8x-4)/(-24y + 6). For the horizontal, x = 1/2 For the vertical ...
*Monday, November 2, 2009 at 9:00pm by math*

**alison**

How do i find the points of inflection for: f(x)= (1/12)x^4 -2x^2 +15 The answers are (2, 25/3) and (-2, 25/3) but i dont know how to get the answers. Can someone show me step by step?
*Sunday, November 8, 2009 at 4:17pm by math*

**alison**

I have to do a lot of homework problems like this but I do not really understand how to do any of them. Can someone show me how to do this one so I can do the rest of my homework problems on my own? Thanks. Let A = (a, f(a)) and B = (b, f(b)) Write an equation for: a) the ...
*Wednesday, November 11, 2009 at 4:40pm by math*

**alison**

I have to do a lot of homework problems like this but I do not really understand how to do any of them. Can someone show me how to do this one so I can do the rest of my homework problems on my own? Thanks. Let A = (a, f(a)) and B = (b, f(b)) Write an equation for: a) the ...
*Wednesday, November 11, 2009 at 5:55pm by math*

**5th grade**

I am not sure on this question. Can you help me. Question: How can you tell if 31/33 is already in its simplest form? I wrote my answer to the following questions, can you tell if it is right? Question: Can the Greatest Common Factor of 18 and 36 be greater than 18? My Answer...
*Friday, November 13, 2009 at 12:57pm by Math*

**math**

Let (AB) and (CD) be 2 parallel lines by a transversal at E and F respectively.The bisector of AEF and BEF cut (CD) at M and N respectively.The bisector of CFE cuts [ME] at S, and the bisector of DFE cuts [Ne] at T.Show that: ETFS is a rectangle
*Monday, December 14, 2009 at 10:10am by math*

**kate**

can someone please help me solve this problem with the steps. A small can of juice contains 16 fl oz. A large can has twice the base circumference of the first. How much juice is in the large can if both cans are right circular cylinders and the second can is similar to the ...
*Sunday, December 20, 2009 at 1:31pm by math*

**math**

-1x>-5 _ _ 8 16 help
*Sunday, January 17, 2010 at 4:08pm by math*

**algebra**

the permeter of a rectangle is 148 inches the length exceeds the width by 52 inches find the length and width..
*Sunday, January 17, 2010 at 4:30pm by math*

**algebra**

yes so the width is 11 and the length is 63
*Sunday, January 17, 2010 at 4:30pm by math*

**Jane**

I am confused what would be a real-life solution using polynomial division.
*Thursday, January 21, 2010 at 4:43pm by Math*

**lisa**

This is a question given to me to answer:How is dividing a polynomial by a binomial similar to or different from the long division you learned in elementary school? Can understanding how to do one kind of division help you with understanding the other kind? This is my answer: ...
*Thursday, January 21, 2010 at 5:00pm by Math*

**MATH**

Tory is painting a design on her jacket. The side lengths measure 14 cm, 16 cm and 12 cm. What type of triangle is this?
*Wednesday, February 10, 2010 at 5:36pm by MATH*

**Math**

Then how much is 1 mL?
*Tuesday, February 16, 2010 at 9:04pm by math *

**i dont know**

no that's not math, i said that the subject was I DON'T KNOW!
*Tuesday, February 16, 2010 at 9:18pm by math *

**English**

In the park would be the best answer.
*Tuesday, February 16, 2010 at 7:02pm by math *

**Math**

what is higher 50 mL or 5 L?
*Tuesday, February 16, 2010 at 9:04pm by math *

**i dont know**

What is the capital of the state that shares its long southern border with Texas?
*Tuesday, February 16, 2010 at 9:18pm by math *

**physics**

huh?
*Tuesday, February 16, 2010 at 7:13pm by math *

**12th grade**

I think that's history
*Tuesday, February 16, 2010 at 9:52pm by math *

**Math**

So is 5 L better then 50 mL
*Tuesday, February 16, 2010 at 9:04pm by math *

**Grade 2 english**

oh, you had to unscramble it.
*Tuesday, February 16, 2010 at 10:20pm by math *

**English**

Both
*Tuesday, February 16, 2010 at 8:09pm by math *

**3rd grade math**

The answer is 13. 13 times 2 = 26 13 times 6 = 78 13 times 4 = 52
*Thursday, February 18, 2010 at 9:05pm by Math*

**honors algebra 1**

composition function g(f(x)) so where ever you see x in the g(x) equation plug in f(x) so do the reverse g(x)= (1/2)x so when you check your work g(f(x))= (1/2(2x)) ----> the 1/2 and the 2 cancel and you are left with just x so it checks!
*Thursday, March 4, 2010 at 9:35pm by math*

**donna**

3x+4Y=13 (2,7)
*Sunday, March 7, 2010 at 7:42pm by math*

**MATH**

does the series 1/n from n=0 to infinity converge or diverge? what convergence test is this?
*Tuesday, March 9, 2010 at 12:29pm by math*

**9th grade**

5x-3y=23...............equation (1) 3x+5y=7.................equation (2) Eq. (1) x 5: 25x-15y=115......Equation (3) Eq. (2) x 3: 9x + 15y=21........Equation (4) Eq (3)+Eq. (4): 34x = 136 (eliminating y) Therefore, x = 4
*Tuesday, March 16, 2010 at 6:50pm by Math?*

**frank**

(6-4x-x^2)^2
*Wednesday, July 21, 2010 at 10:47pm by Math*

**algebra II**

ï¿½Ã£(x+9)= -9
*Sunday, July 25, 2010 at 1:22pm by math*

**Math**

Help! How do I complete these magic squares! They're taking me FOREVER! In magic squares, certain numbers have to add up to a certain sum, and be the same sum diagonal,across,and vertical. (Sorry if I didn't explain well) Arrange the numbers 2,4,6,8,10,12,14,16, and 18 so that...
*Wednesday, August 25, 2010 at 4:00pm by math*

**science**

A hypothesis is an educated guess, or a guess that you make based on your knowledge, on the outcome of an experiment.
*Tuesday, August 24, 2010 at 5:41pm by math*

**college**

(2x^(2)+7x-15)/(2x^(2)+13x+15)
*Tuesday, August 31, 2010 at 9:06pm by Math*

**college**

(2x^(2)+7x-15)/(2x^(2)+13x+15)
*Tuesday, August 31, 2010 at 9:06pm by Math*

**statistics**

2.60
*Thursday, September 9, 2010 at 11:49pm by math*

**statistics**

2.60
*Thursday, September 9, 2010 at 11:49pm by math*

**statistics**

256(trust me)
*Thursday, September 9, 2010 at 11:51pm by math *

**statistics**

A research article included the following table: Mean Score on Four Questionnarie Scales Before and After the Experimental Manipulation. Questionnaire Before After Change Dominance 18.42 16.31 -2.11 Independence 17.25 21.38 4.13** Conformity 18.97 17.20 -1.77* Nurturance 16.11...
*Thursday, September 9, 2010 at 11:57pm by math*

**statistics**

A research article included the following table: Mean Score on Four Questionnarie Scales Before and After the Experimental Manipulation. Questionnaire Before After Change Dominance 18.42 16.31 -2.11 Independence 17.25 21.38 4.13** Conformity 18.97 17.20 -1.77* Nurturance 16.11...
*Thursday, September 9, 2010 at 11:58pm by math *

**statistics**

A school counselor tests the level of depression in fourth graders in a particular class of 20 students. The counselor wants to know whether the kind of students in this class differs from that of fourth graders in general at her school. On the test, a score of 10 indicates ...
*Thursday, September 9, 2010 at 11:59pm by math *

**alicia**

Thanks Ms. Sue!
*Tuesday, September 14, 2010 at 3:25pm by math*

**alicia**

Okay, write the expression or inequality. : the difference of a number z and 11 is equal to 35 How would I do that? please explain in great detail
*Tuesday, September 14, 2010 at 3:25pm by math*

**math**

what is a word problem for 2x-4=8?
*Tuesday, September 28, 2010 at 7:59pm by MATH*

**jake**

The point (0,1) has the distance ____, from the line defined by y=-2x-1 How do you solve this? I tried the pythagorean theorem but I don't think I did it right as I came out with the square root of two. Can someone please explain this to me.
*Thursday, October 7, 2010 at 10:39pm by math*

**liz**

You build a box that is 4 feet long, 5 feet wide, and 8 feet high. The distance from the top left front corner to the top right back corner is ______. I tried a²= 4² + 5² a²= 41 d² = 41 + 8² d²= 105 d=+- 10.25 is this right?
*Friday, October 8, 2010 at 5:04pm by math*

**Shadow**

Write a two column proof. 1.Reflexive property of Congruence. -Thanks
*Wednesday, October 13, 2010 at 11:52pm by Math*

**Calc**

lim as x approaches negative infintiy (x^2+x^3) I just dont know where to start
*Wednesday, October 20, 2010 at 5:27pm by Math*

**Calc**

oh! I was trying to make it harder than it was! thank you!
*Wednesday, October 20, 2010 at 5:27pm by Math*

**3rd grade math**

ashton broke apart a number into 30+7. what number did she start with?
*Wednesday, October 20, 2010 at 7:17pm by math*

**calc**

hi im totally blanking how do i find the antiderivative of cos(0.5(x^2))? thanks!
*Monday, March 28, 2011 at 8:50am by math*

**lomas**

Right answer? 15(x^2+3x) + 7(x^2+3x) - 5(x^2+3x) 15x^2+45x+7x^2+21x + 5(-x^2-3x) 15x^2+45x+7x^2+21x-5x^2-15x 17x^2+51x
*Monday, November 1, 2010 at 3:16pm by math*

**physics**

k so question is one you have all answered previously, 3 different forces acting on a single mass, in north south and east directions. my particular forces are 11.3 N north, 20.4 N east, and 14.7 N south so to figure out the direction of acceleration in degrees, you have to ...
*Wednesday, November 3, 2010 at 5:28pm by math*

**physics**

sorry, uhm so first I figured out the acceleration of the mass, which was 5.78m/s^2. Then it asks what is the direction of acceleration, if you take east to be zero degrees and counterclockwise to be positive
*Wednesday, November 3, 2010 at 5:28pm by math*

**physics**

thank you do you know how i would figure out the normal forces of the table to each of the magnets?
*Wednesday, November 3, 2010 at 5:28pm by math*

**physics**

yeah, and that wasn't the right answer. Its why i was asking you, you tool.
*Wednesday, November 3, 2010 at 5:28pm by math*

**college**

I have 7 12 feet of rope and my friend has 3/10 of what we . need to make a jump rope hang up in our back yourd
*Thursday, November 4, 2010 at 7:34am by math*

**math**

help!!! i dont know how to factorize 9x*squared* - 12x +4! HELLLPPPPPP!
*Saturday, November 13, 2010 at 9:13am by MATH.*

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