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April 17, 2014

Search: mathematics: algebra;equations

Number of results: 79,809

mathematics
just wanted to make sure this answer is correct. I am looking for the decimal place of the number 4 in this number 2.84905 Isn't the 4 in the thousanths place? My brain is fried from this math final. Thanks for your help, it is greatly appreciated.
Sunday, August 29, 2010 at 12:28pm by cindy

Mathematics I
Evaluate definite integral from -2 to 0. Integral((x^2)(e^((x^3)/2)dx) Do those parentheses make sense? The power of e is x^3 divided by two. Can someone give me the first step, and I'll see if I can get it from there. I don't want to make you just do the problem for me. Thanks!
Tuesday, May 22, 2012 at 10:37am by Hannah

Mathematics
Well, yes that's right too, Ms. Sue. I'm just making sure if I was right. Well, to be exact, I don't understand it myself. If it's one minute late forever, then it would make a difference/change on the pattern every year. Right?
Thursday, September 22, 2011 at 9:25pm by LostOne

calculus
from http://www.mathscoop.com/calculus/differential-equations/euler-method-calculator.php
Saturday, March 9, 2013 at 2:06pm by Damon

oratorical piece
help me to make an oratorical piece about mathematics
Monday, January 28, 2008 at 8:21pm by rhej

mathematics
-8x/4=6-4x -2x = 6 - 4x 2x = 6 x = ?
Friday, April 22, 2011 at 5:42pm by Ms. Sue

mathematics
36/452 = r^2/1000 r^2 = 36/.452 r = 8.9 cm
Saturday, October 29, 2011 at 3:30am by Damon

Mathematics
so a = 2d term(5) = a + 4d = 2d + 4d = 6d
Thursday, November 3, 2011 at 11:12am by Reiny

Mathematics
= 5(x^36) - 16y^2) = 5(x^18 + 4y)(x^18 - 4y)
Wednesday, March 28, 2012 at 6:44am by Reiny

mathematics
The arithmetic mean of x y and z is 6 while x y z t u v and w is 9 calculate the arithmetic mean of t u v and w.
Tuesday, April 30, 2013 at 5:05am by Frontman

mathematics
the arithmetic mean of x,y and z is 6 while that of x,y,z,t,u,v and w is w. Calculate the arithmetic mean of t,u,v and w.
Saturday, August 24, 2013 at 10:45am by lawrence

Mathematics and Health (Ms. Sue)
Ms. Sue? Writeacher?
Tuesday, November 5, 2013 at 12:14pm by Anonymous

Mathematics
Oops! Obviously, I was wrong. I reworked the problem and found my mistakes. 7 (-7) - 7 (2-3) ______________________ 2 (-6 + 9) Numerator: -49 - 7 (-1) -49 - (-7) -49 + 7 = -42 Denominator: 2 (-6 + 9) 2 (3) = 6 Answer: -42/6 = -7
Saturday, July 25, 2009 at 6:30pm by Ms. Sue

essential Mathematics
find the amount after one year $1,000 invested at 6% per year if interest is a simple interest. compound interest compounded quarterly.
Friday, May 28, 2010 at 7:16pm by unknown

Mathematics for business and Finance
i = .085/12 = .00708333 n = 12x25 = 300 payment = ? paym ( 1 - 1.00708333^-300)/.00708333 = 235000 I will let you do the arithmetic. (hope you get $1892.28)
Friday, May 27, 2011 at 6:12pm by Reiny

Mathematics
Is the formula correct? √b^2? That's just b However, if you mean √(b^2-c) then just plug in the numbers! 5k = 3*√(36-20) = 3*4 = 12 not so hard, eh?
Wednesday, November 16, 2011 at 7:28am by Steve

mathematics
d = 150km @ 42o + 250km @ 0o. X = 150*cos42 + 250 = 361.5 km. Y = 150*sin42 = 111.5 km. D^2 = X^2 + Y^2 = 143,114.5 D = 378.3 km
Monday, February 11, 2013 at 12:39am by Henry

Mathematics
A regular octagon is formed by cutting off the corners of a square. If one side of the square is n cm, find the total area removed in square cm.
Monday, August 12, 2013 at 8:19am by Arch

Math
A retired couple needs $12,000 per year in income to supplement their Social Security. They have $150,000 to invest to obtain this income. They have decided on two investment options: AA bonds yielding 10% per annum and a bank CD yielding 5%. (a) How much should be invested in...
Thursday, July 7, 2005 at 10:32am by Angel

algebra
look over the equations and decide which variable would be the "easier" one to eliminate. In the first I would choose the z add the last two equations: 8x + 6y = 0 = 20 reduce to 4x + 3y = 10 2nd times 4 : 8x - 4y + 4z = 12 3x + 2y + 4z = 19 , now subtract those two...
Monday, April 8, 2013 at 1:38am by Reiny

Trigonometic
Solving Trigonometic Equations solve for x and give the answers as a equations : ( by radian) 1)cos(sinx)=1 <<<and thanks >>> We know sin 2x = 2(sinx)(cosx) so (sinx)(cos)=1/2(sin 2x) So we can change your equation from (sinx)(cosx)=1 to 1/2(sin 2x) = 1 (sin ...
Thursday, April 26, 2007 at 7:22am by abdo

Algebra Word Problem...please help me
Megalodon Lives Angler went fishing and caught a monster of a fish! The head of the fish was 10 feet long. The length of the tail was equal to the length of the head plus half of the body. The body was as long as the head and the tail together. What was the total length of the...
Wednesday, December 7, 2011 at 3:26pm by Linda

Algebra 2
arrange the equations into the form ax + by = c 1. -14x = -632 - 26y ---> 14x - 26y = 632 slope = 14/26 = 7/13 y = (7/13)x - 316/13 ---> 7x - 13y = 316 slope = -7/-13 = 7/13 since the slopes are equal, they must be parallel. To be perpendicular, their slopes must be ...
Tuesday, March 17, 2009 at 10:10pm by Reiny

mathematics
Mri.Williams bought a plot of land for $4o,oo. The value of the land was appreciated by 7% each year. Calculate the value of the land after a period of two years.
Wednesday, January 30, 2008 at 10:43pm by gisselle

Mathematics
Determine the equation of a quadratic function that satisfies each set of conditions. a) x-intercepts 1 and -1, y-intercept 3 b) x-intercept 3, and passing through the point (1, -2) c) x-intercepts -1/2 and 2, y-intercept 4 Please explain your answers.
Sunday, September 7, 2008 at 6:58pm by Julio

mathematics
1.An aquarium has the shape of a rectangular prism.It's length is 80 cm.its width is one-half of the length and its height is three-fourths of the length.What is the volume of the aquarium in cm3?
Monday, January 24, 2011 at 7:26am by maricel

Mathematics
let the number of years be x x+39 = 2(15+x) x+39 = 30 + 2x 9 = x check: in 9 yrs from now, kim will be 24 and Kim's dad will be 48 , which is twice Kim's age.
Monday, April 8, 2013 at 6:28pm by Reiny

Mathematics
Old MacDonald has to pack 60 chickens into 32 cages. If each cage can hold at most 3 chickens, what is the minimum number of cages that will have at least 2 chickens?
Friday, March 14, 2014 at 11:50am by Hari

Algebra
You are obviously studying quadratic equations. With what specific part of this assignment are you having difficulties ? I will pick two at random 1. x^2 + 12x + 25 = 0 Since the quadratic term has a coefficent of 1 and the middle term is even, completing the square works best...
Wednesday, October 9, 2013 at 8:53am by Reiny

mathematics
which of the following expressions shows the equation to use in finding the dimensions of a cube n by n by n with a volume of 125? 1. n3 =125 2. n2 =125 3. 3n =125 4. n =125 __ 3 5. not enough information is given
Sunday, August 28, 2011 at 5:23pm by Quanna

math i need help plz!
You need to write two equations in two unknowns, and then solve for them both. Let x be the original number of TVs and y be the original number of VCRs. Here is what you know: 360 x + 270 y = 45,990 (3/4)*360 x + (1/3)*270 y = 27,630 which can be simplified to: 270 x + 90 y = ...
Tuesday, March 29, 2011 at 12:48am by drwls

algebra
If you want to learn the subject, you should learn how to solve the equations. You or others with different screen names have been submitting these simple multiple choice problems all day. In one case a wrong quess was made. At the very least, try the different x,y ...
Thursday, April 29, 2010 at 11:33am by drwls

Physics
Two masses are held while suspended on a frictionless pulley.Their masses are 0.250 kg and 0.200 kg. a. Compute for the acceleration of the masses once they are released? b.Find the tension on the string m1 accelerates upward and m2 downward Let a be the acceleration of m1 ...
Sunday, September 10, 2006 at 8:43am by fluffy

mathematics
we know that 2/3 pi r^3 = 1/2 (1/3 pi r^2 h), so h = 2/3 r so, r:h = 3:2 arctan(3/2) = 56.31 deg not quite sure what you mean for part 2, but that should help v = 2/3 pi r^3 + 1/3 pi r^2 h = 2/3 pi r^3 + 1/3 pi r^2 (2/3 r) = 8/9 pi r^3
Friday, April 5, 2013 at 12:03pm by Steve

Algebra 1 HELP
The number of gallons needed of paint needed to cover a wall varies directly with the area of the wall. The Robertsons find that they have used 1/2 gallon of pain to cover 540 square feet of wall. Which of the follow equations shows the number of gallons of paint they will ...
Saturday, November 9, 2013 at 6:56pm by Katie

chem- balancing equations
Yeah. That what i meant thanks!!
Sunday, September 16, 2007 at 7:37pm by manny

Math - Solving Trig Equations
thanks, I solved it :)
Wednesday, November 21, 2007 at 6:29pm by Anonymous

math
I need help with equations. -4X+Y=16
Monday, February 25, 2008 at 8:11pm by Anonymous

Linear Equations
Y=x-2 Y=2x Are these The Correct Answers? X=-2 Y=0
Tuesday, March 4, 2008 at 8:26pm by Mike

Linear Equations BUT... (HELP!!!!)
WITCH ONE IS RIGHT
Tuesday, March 4, 2008 at 8:26pm by Mike

math
Solve the pair of simultaneous equations x^2=4-y x=y+2
Monday, April 7, 2008 at 10:49am by candy

math
solve the pair of simultaneous equations y=x+2 y+x^2
Tuesday, April 8, 2008 at 9:54am by michael

math-radical equations
thanks, Damon - you are awesome =)
Sunday, May 4, 2008 at 3:48pm by Jennifer

math-radical equations
I did it later above
Sunday, May 4, 2008 at 3:45pm by Damon

discrete math
how do i solve linear equations? -4(k-2)+3(k+1) =7.
Thursday, September 11, 2008 at 6:30pm by kennedy

Precalculus
solve the equations for x a) e^2x - e^x - 30 = 0 b)1-3/n^x = 5
Monday, July 5, 2010 at 12:56pm by Abraham

math
x+y = 16 x-y = 8 solve these two equations
Monday, December 1, 2008 at 8:17pm by Reiny

Science CSAP practice
BALANCING EQUATIONS
Tuesday, December 19, 2006 at 11:46am by ALICIA

grade 9 math slope equations
thank u so much !!!!!!
Sunday, March 15, 2009 at 11:00pm by rany

math/equations
HOW DO YOU SAY THIS IN WORDS?! 6+m/3=18
Tuesday, March 31, 2009 at 4:10pm by sara

Math
but how do you set it up as simultaneous equations?
Tuesday, April 14, 2009 at 5:23pm by Angie

math
A single equation is not a system of equations.
Tuesday, May 12, 2009 at 8:00pm by Fred

math
how do you do equations with variables on both sides?
Wednesday, August 26, 2009 at 10:59pm by Kerri

10th grade
IPC Balancing Equations???
Monday, January 4, 2010 at 4:42pm by Anonymous

chemistry
2,3,1,3 What do you not understand about balancing equations?
Monday, January 4, 2010 at 6:34pm by DrBob222

simple equations ( math)
ook thanksss
Sunday, January 10, 2010 at 1:05pm by vanessa

simple equations ( math)
sorry i don't understand
Sunday, January 10, 2010 at 2:07pm by vanessa

chemical equations
Is the answer 51 g H2O?
Sunday, February 7, 2010 at 6:07pm by Tristan

Chemistry-Equations
I STILL HAVE NO IDEA!!!
Friday, March 5, 2010 at 11:27am by meg

Math
Solve the system of equations y=3x x^2-y=28
Wednesday, March 24, 2010 at 6:02pm by .

alegbra
what is the solution of the following system of equations? y = 0 x = y + 2 a) (0,2) b) (2,0) c) (1,2) d) (2,1) thank you
Thursday, April 29, 2010 at 10:25am by kid

equations trig
2cos^2x-3sinx=0
Monday, May 3, 2010 at 10:54am by LiNnda

Math
Are all linear equations functions? Why or why not?
Tuesday, June 8, 2010 at 6:13pm by Diana

Chemistry - Equations
a and b. they can both limit the reaction
Thursday, January 31, 2008 at 8:13pm by sam

Chemistry-Equations
23.9 g its not that hard buddy
Friday, March 5, 2010 at 11:27am by Jessica

Math-Equations
(1/3)y2+12=5x
Monday, September 3, 2007 at 1:01pm by pertemuel

Quadratic Equations
Thank you! Is this case for all functions?
Thursday, September 2, 2010 at 9:49am by Lynn

Quadratic Equations
Okay I think I understand now. Thank you!
Thursday, September 2, 2010 at 9:49am by Lynn

Linear equations i think
4x/(-4)=-x 14/(-4)=-7/2
Wednesday, September 29, 2010 at 12:14pm by bobpursley

alegbra 1
i need help with solving literial equations
Wednesday, October 6, 2010 at 4:52pm by halima

Math 111 URGENT
I wrote them as equations. x = 3 x = 2 x = -2
Wednesday, November 10, 2010 at 12:00am by Reiny

math
how to graph absolute value equations
Sunday, December 12, 2010 at 12:42pm by Anonymous

Chemistry
Its 40 C. Therefore, the equations are right then. Okay thanks
Sunday, January 9, 2011 at 10:44am by Anonymous

math
cannot solve either as separate equations
Tuesday, January 18, 2011 at 11:59pm by helper

equations calculus
what is the value of y in the equation (y/(2y-x))=0.5
Tuesday, January 25, 2011 at 1:09pm by james

grade 9 math slope equations
cool .....not
Thursday, March 19, 2009 at 1:41pm by Suck it

math
HEYY CAN Y SPARE THE EQUATIONS TWO
Wednesday, January 12, 2011 at 8:05pm by MIKE

Math
depends on the equations, if eg, y=2x+3, slope is 2.
Wednesday, March 2, 2011 at 7:05pm by bi

Quadratic Equations
any other easy method
Thursday, April 14, 2011 at 1:03pm by Akash

grade 9 math slope equations
i'm so dead!
Sunday, March 15, 2009 at 11:00pm by salsun

math
Are you able to set up the equations?
Friday, May 6, 2011 at 10:01pm by MathMate

trig
identities are equations. I don't see an equation.
Monday, May 30, 2011 at 8:33pm by Reiny

chemistry
i have aproblem in balancing equations
Wednesday, July 6, 2011 at 9:14am by nidhi

Math
Equations with Rational Expressions 5/3x - 1/9 = 1/x
Monday, August 8, 2011 at 8:50pm by Jlewis

math equations
what's the answer to 60=3x+3(x+8)
Sunday, October 16, 2011 at 8:57pm by Vanessa

math
What question are you trying to answer with the equations?
Sunday, October 23, 2011 at 8:21pm by PsyDAG

MATH
Solving system of equations by graphiing x-y=-1 x+y=5
Friday, November 11, 2011 at 4:55pm by Anonymous

algebras equations
you forgot that pesky "y" upstairs... y/(y+7)
Wednesday, January 11, 2012 at 7:49pm by Steve

quadratic equations
x^2 + 3x - 7 = 0 a=1, b=3, c=-7 x = (-3 √37)/2
Tuesday, January 17, 2012 at 10:01pm by Reiny

Polar equations - Help?
thank you so much, I don't know how i missed that identity.
Friday, April 20, 2012 at 3:48pm by Tabby

Physics Equations of Motion
90.5x10^3 :)
Thursday, June 7, 2012 at 10:42pm by Ashley

math equations
Solve x = log3 15
Tuesday, June 12, 2012 at 1:52pm by jess

math
a-2/6 -5 = a+3/3 SOLVE FOR A solving equations with fractions
Thursday, July 12, 2012 at 5:18pm by jack

Chemistry
What are the equations for 14C half life?
Monday, May 3, 2010 at 9:10pm by michele

Math
Working with linear equations: 3(2x+1) - 4 (x+2) = 9
Friday, January 25, 2013 at 2:39pm by John

Math
How can I find 2 equations with infinitely many solutions? Thanks
Sunday, March 10, 2013 at 4:52pm by Cara

Math
How can I find 2 equations with infinitely many solutions? Thanks
Sunday, March 10, 2013 at 6:16pm by Cara

math
any helpful hints for solving equations?
Saturday, May 18, 2013 at 1:30pm by stacy

math
What is the hardest part of solving equations?
Saturday, May 18, 2013 at 1:55pm by stacy

math linear equations
Thanks, I'll keep that in mind.
Friday, May 31, 2013 at 2:18pm by Anonymous

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