
Geometry
I would greatly appreciate any help I can get with this problem. I need to find the volume of a right triangular prism. The sides of the triangles measure 2cm and the length of the prism is 10cm. I found the surface area to be 64sq cm...is this correct?
asked by Nicole on February 24, 2010 
help me calculus
the parametric equation of a curve are x=cos2Øand y=1+sin2Ø find dy/dx and d^2y/dx^2 at Ø=pai/6.find the relationship between x and y sir steve help see my work dx/dØ=2sin2Ø dy/dØ=2cos2Ø dy/dx=dy/dØ*dØ/dx dy/dx=2cos2Ø*1/2sin2Ø dy/dx=cot2Ø
asked by practising and need help on November 13, 2016 
Physics URGENT!!!
Two packing crates of masses 7.93 kg and 5.13 kg are connected by a light string that passes over a frictionless pulley as in the figure below. The 5.13 kg crate lies on a smooth incline of angle 40.0°. a) Find the acceleration of the 5.13 kg crate (b)
asked by Anonymous on September 30, 2012 
Physics
Two packing crates of masses 7.93 kg and 5.13 kg are connected by a light string that passes over a frictionless pulley as in the figure below. The 5.13 kg crate lies on a smooth incline of angle 40.0°. a) Find the acceleration of the 5.13 kg crate (b)
asked by Anonymous on September 30, 2012 
Algebra/PreCalc
Find the values for a and b such that f(x) is continuous on the interval 0 < or = to x < or = to 13. { 2x^2, 0 < or = to x < or = to 3 f(x) = { ax + 3, 3 < or = to x < or = to 7 { b, 7 < or = to x < or = to 13 Can someone explain? Am I suppose to find the
asked by Pamela on July 6, 2007 
Physics
Two packing crates of masses m1 = 10.0 kg and m2 = 4.10 kg are connected by a light string that passes over a frictionless pulley as in the figure. The 4.10kg crate lies on a smooth incline of angle 33.0°. (a) Find the acceleration of the 4.10kg crate.
asked by Cora on September 30, 2012 
Calc
a) y =ln(x1) find dy/dx=? b) y=3 ln x  ln (1/x) where x >0, dy/dx= ? My teacher says the answers are a) (2x)/(x^21) and b) 4/x I am not sure how you find the derivative when they involve ln. Could you please explain to me how to get these answers? I
asked by Jamie on January 16, 2007 
physics
A sound wave has a frequency of 686 Hz in air and a wavelength of 0.50 m. What is the temperature of the air? Find wavelengths for 20 hz: Find wavelengths for 20,000hz:
asked by Erika on April 24, 2013 
Math
Triangle abc is right angled at a .ad is drawn perpendicular to bc .if ab=5cm and ac=12cm find the area or triangle abc. Also find the length of ad
asked by Sojal on December 17, 2016 
Math
The scale of a map is 1 inch : 5 miles. Find the distance. A lake is 7 in. long on the map. Find the actual length of the lake.
asked by Anonymous on January 25, 2016 
calculus
a. find an equation for the secant line through the points where x has the given values. b. find a equation for the line tangent to the curve when x has the first value. y=9square root(x); x=16, x=25
asked by Duane on October 26, 2014 
physics
Given the following forces acting on an object find the net force: 2.0N[N], 10N[S], 2.0N[W], 8.0N[E] The mass is 5.1 kg with the net force find the objects acceleration
asked by Melissa on April 4, 2012 
easy GEOMETRY!!
1.The perimeter of parallelogram QUAD is 10 more than 5 times AU. If QU =26 cm. find AU 2.If diagonals of a rhombus are 10 cm and 24 cm. find the area and perimeter of the rhombus SOlutions pleaseeeeeee
asked by keisha on October 22, 2013 
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
asked by Stella on May 3, 2009 
Precalculus
I really need help on this as I have tried multiple times and my answers are none of these. Please help 1. Find (f*g)(x) where f(x)=1/(x^2+3) and g(x)=sqrt(x2). a. (f*g)(x)=1/x2 b. (f*g)(x)=1/sqrt(x2)+3 c. (f*g)(x)=1/x+1 d. (f*g)(x)=sqrt(2x^25/x^2+3)
asked by Girly Girl on September 5, 2017 
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
asked by Stella on May 3, 2009 
p i s j
The mass of fan astronaut is 100kg 1)find its weight on earth. 2)find its weight on moon. When the gravitational acceleration on moon is 1.6 ms
asked by ibrahim on October 19, 2014 
math
To find the volume of a box, you can multiply its height, length, and width. The measure of the volume of a box is 357. Find its possible dimensions.
asked by gabi on September 7, 2010 
math
Consider the function:(2x^2 +3x 7) y= 2x^2x +3x +17 Find y ′ using implicit differentiation. Do not solve for y. What is the slope of the tangent at (x,y) = (−1,−1)? Find y ′ by solving for y and using the quotient rule. What is the slope of the
asked by excel on April 1, 2017 
calculus
Find the extreme values of the function for the given intervals. 2x^3 – 21x^2 + 72x a) [0,5] b) [0,4] I have both the minimum values for both intervals which is 0. But I am unable to find the maximum. please help!!!
asked by Abdullah on March 13, 2011 
Cubic Equations
I have three that I need help with if possible. 1. Solve 2x^3  3x^2 = 6x  9 2. Find all real and imaginary roots of the polynomial equation 3x^4  x^3 + 4x^2  2x  4=0 3. Find a cubic equation with integral coefficients and roots 3i and 5.
asked by Belinda on January 8, 2012 
math
Please help me solve this problem... thanks! 1.Find the equation of the line that cntains the pont (5, 1) and has slope 1/2 2.find the equation of the line that passes through the points (2,1) and (1,5)
asked by jojo on October 26, 2009 
chemistry
How is a mole ratio used to find the limiting reactant? Is there a specific equation to find the limiting reactant? Can someone explain it to me because I don't understand it.
asked by Clary on April 7, 2010 
College Algebra 105
use the rational zero's theorem to list the potential zero's of the polynomial function. Do not attempt to find the zero's f(x)=169x^7x^6+x+13 and then the second part is find the potential rational zero's.
asked by Dawn Mason on December 9, 2013 
geometry
1.The perimeter of parallelogram QUAD is 10 more than 5 times AU. If QU =26 cm. find AU 2.If diagonals of a rhombus are 10 cm and 24 cm. find the area and perimeter of the rhombus SOlutions pleaseeeeeee
asked by cyrus on December 13, 2014 
math
Consider the function: (2x^2  2x4) y = 2x^2  x +10 Find y â€² using implicit differentiation. Do not solve for y. What is the slope of the tangent at (x,y) = (2,âˆ’1)? Find y â€² by solving for y and using the quotient rule. What is the
asked by Phemmi on April 2, 2017 
math
a=3,b=2,c=2 would this make a triangle? if so, how would i find the angles? thanks for helping. You would find the angles using the cosine law. When all three sides are given to a triangle, you can solve for each angle.
asked by maggie on June 13, 2007 
geometry
I really dont get why there are two NQ and 2 CA. can someone explain 1) Find the value of the variable and MN if N is between M and Q. Round to the nearest hundredth if necessary. MQ = 5m + 1, NQ = 4m, NQ = 12 Select one: a. m = 4, MN = 5 b. m = 3, MN = 4
asked by need help on June 10, 2018 
Algebra 1
Write an equation of a line that passes through (12, 14) with slope 6. A.y = 6x  12 B.(y + 14) = 6(x + 12) C.(y + 12) = 14(x + 6) I've tried so many different ways to find this answer but can't. Please help me and please show me how you got it. I don't
asked by Ella on March 13, 2012 
Math
The scale of a map is 1 inch : 5 miles. Find the distance. A road is 3 in. long on the map. Find the actual length of the road.
asked by Anonymous on January 25, 2016 
math
Let f be he realvalued function defined by f(x)=sin^3x+sin^3x (a) find f'(x) for x>0 (b) find f'(x) for x
asked by Mariam on November 4, 2010 
Calculus
The region R is bounded by the xaxis, x = 1, x = 3, and y = 1/x^3 A) Find the area of R B) B. Find the value of h, such that the vertical line x = h divides the region R into two Regions of equal area.
asked by Samantha on May 6, 2014 
physical science
Trying to find the power to this ?. A weightlifter lifts a 1250n barbell 2meters in 3seconds. How much power was used to lift the barbell? Do you have to find the work first??
asked by Liam on April 26, 2011 
CAL
Consider the function y = 3x5 – 25x3 + 60x + 1. Find the absolute maximum value of y on the interval [0, 3]. What do you get I got 322, but I'm not 100% on how to find the absolute maximum.. so is that right?
asked by Kelly on December 9, 2014 
Algebra
A big sale is happening today at the Newton Shoe Store. You buy two pair od running shoes. The first pair is $64, which is 20% off the original price. The second pair os $72, which is 40% off the original price. what is the persent of discount on the
asked by Kaylee on March 27, 2008 
Statistics
Males make a mean of 531 on math SAT with standard deviation of 114. Minimum 600 score. what's the % of males that don't satisfy this requirement? Pregnancies usually distributed mean of 268 days and standard distribution 15 days. Baby born three week
asked by Sue on December 5, 2006 
Advanced Accounting
Time had a bad year in 2001; the company suffered a net loss. The loss pushed most of the return measures into the negative column, and the current ratio dropped below 1.0. The company's debt ratio is still only .27. Assume top management of Time is
asked by Eugene on September 11, 2007 
chemistry
consider the following reaction CH3X + Y> CH3Y + x at 25 degree celcius the following two experiments were run, yielding the following data: experiment 1 [Y]0=3M [CH3X] time 7.08×10^3 1 4.52×10^3 1.5 2.23×10^3 2.3 4.76×10^4 4 8.44×10^5 5.7
asked by timathy on March 23, 2008 
Help 5!!!
5. Find the x and y intercepts of each linear equation. Be sure to write your answers as ordered pairs. y = 3x  6 6y = x + 2 On the second equation, change it to read y= ...,. Divide both sides of that equation by 6 to get the desired result. how?? The
asked by Margie on October 13, 2006 
math
I am looking for the median, I believe it is 39 am I correct? 26, 30, 38, 67, 59, 21, 17, 85, 22, 22 First line up all the numbers in order from smallest to biggest. 17 21 22 22 26 30 38 59 67 85 Next cross off one number from the left and then one from
asked by Christi on June 3, 2007 
physics
Four objects are held in position at the corners of a rectangle by light rods . m1 2.90(kg) m2 1.90(kg) m3 4.50(kg) m41.90 (kg) (a) Find the moment of inertia of the system about the xaxis. Answer in kg · m2 (b) Find the moment of inertia of the system
asked by Allie on October 26, 2011 
Calculus
1. For f(x) = (1x)/(1+x) and g(x) = x/(1x), find the simplified form for f[g(x)] and state the domain? 2. Evaluate lim x >1 ((√x^2 +8) 3))/(x1) 3. A particle moves on a line away from its initial position so that after t hours it is s = 4t^2+t
asked by Dante on October 1, 2017 
Calculus
1. For f(x) = (1x)/(1+x) and g(x) = x/(1x), find the simplified form for f[g(x)] and state the domain? 2. Evaluate lim x >1 ((√x^2 +8) 3))/(x1) 3. A particle moves on a line away from its initial position so that after t hours it is s = 4t^2+t
asked by Dante on October 1, 2017 
Calculus
We're learning disks, shells, and cylinders in school but we have a substitute and I've been trying to teach this to myself. Can you check them please? =) Thank you! 1) Find the volume of the solid formed when the region bounded by curves y=x^3 + 1, x= 1,
asked by Hannah on May 21, 2013 
Calculus
We're learning disks, shells, and cylinders in school but we have a substitute and I've been trying to teach this to myself. Can you check them please? =) Thank you! 1) Find the volume of the solid formed when the region bounded by curves y=x^3 + 1, x= 1,
asked by Hannah on May 21, 2013 
GEOMETRY CIRCLES PLEASE
1.An isosceles triangle with each leg measuring 13 cm is inscribed in a circle . if the altitude to the base is 12 cm find the radius of the circle 2. Circles a and b are tangent at point c. p is on circle a and q is on circle b such that pq is tangent to
asked by BARBIE LEE on December 7, 2013 
science
I need to find a good site with information about the bacteria Alcaligenes faecalis. I haven't been able to find anything no matter how much I searched, only bits and pieces. Would u know any good sites?
asked by ali on December 10, 2006 
Macroeconomics
Assume that preferencse are given by u(c,L) = 2*ln(c) +ln(L). The wage rate is $15 and the person has 120 hours of time available. Profits are 0. Taxes are 0. Write down two equations that describe the constraints faced by this consumer. Find an equation
asked by Kayla on May 24, 2008 
US history
USSoviet relations during the early years of Reagan Administration: A. improved because NATO decided not to deploy cruise missiles in Europe. B. changed little despite the positive messages sent from the new Soviet leader Andropov. C. worsened because the
asked by anthony on November 24, 2010 
US history
USSoviet relations during the early years of Reagan Administration: A. improved because NATO decided not to deploy cruise missiles in Europe. B. changed little despite the positive messages sent from the new Soviet leader Andropov. C. worsened because the
asked by ant on November 24, 2010 
Algebra II
A projectile is launched from a platform 10 meters above ground with an initial upward velocity of 20 meters per second. Find the time when the projectile has returned to the initial height launch, find the time the projectile hits the ground, find the
asked by Julia on December 8, 2011 
physics
Part 1: A ball is thrown horizontally from the top of a building 28.6 m high. The ball strikes the ground at a point 80.3 m from the base of the building. The acceleration of gravity is 9.8 m/s^2. Find the time the ball is in motion. Answer in units of s.
asked by autumn on October 25, 2010 
biology multiple choice
I am preparing my self for a biology exam and i am going through past papers. Unfortunately they do not supply us with the answers, which in one way is good.(since you have to actually work for your answers) All I am asking of you people is that you run
asked by alex on August 1, 2013 
government
1. The Framers of the US Constitution supported political parties. A) True B) False 2. The US is predominantly a multiparty system. A) True B) False 3. The main focus of major parties is to nominate candidates and get them elected. A) True B) False 4. The
asked by Allison on June 27, 2013 
Math
If I I'm trying to find the average weight of a 2nd grade girl which would be the most effective and why? Mean, Median or Mode? If I'm trying to find the average cost of a home in a city which would be the most effective and why? Mean, Median or Mode? If
asked by Anonymous on November 5, 2013 
Math
Find the length of the curve y=(x3/3)+x2+x+14x+4 Plases help to find the curve
asked by Abdullah on March 15, 2017 
math need help please
Find the reciprocal of a.  1/10 (47) b. ½ / ¼ (hint: solve these first then find reciprocal of the answer)
asked by nonna on November 15, 2008 
Pre Algebra
equations of the system Ax4y=9, 4x+By=1 explain how to find the values of A and B,then find these values
asked by Varice on March 28, 2012 
math
Find the reciprocal of a.  1/10 (47) b. ½ / ¼ (hint: solve these first then find reciprocal of the answer)
asked by Arnold on November 13, 2008 
math
Rewrite the equation so that y is a function of x: 1. 2/3y+4=2x 2. 1/2(y+5)+4x=3x 3. Use the result in Ex. 1 to find y when x= 1, 0, and 2. 4. Use the result in Ex. 2 to find y when x= 1, 0, and 2. Thank you very much for any help.
asked by L.A on September 20, 2009 
Linear Algebra
Let v1= (1,1,2,1) v2= (0,1,3,3) v3= (1,1,4,5) v4= (1,0,2,4) a) Let U=span{v1,v2,v3,v4}. Find the dimension of U b) Is span {v1,v2,v3,v4}=R4? c) Find a basis for U Very Much Appreciated!!!
asked by Simon on December 14, 2011 
Precalc
1. Find the polar coordinates of (8, –8) for r > 0. 2.Find the rectangular coordinates of (9, 150°)
asked by Anne on September 17, 2012 
Algebra
Find the LCM of (7+9u), (4981u^2), and (79u) Find the LCM of 15x^8 and 75x^8
asked by Rene on July 11, 2010 
Calc 3
Let C be the intersection of x^2+y^2=16 and x+y+z=5. Find the curvature at (0,4,1). I don't know how to find the intersection between the given equations.
asked by Anon on October 15, 2015 
Math
Let f(x)=x^44x^3+10 Find the first derivative of the function. Find the critical values of the first derivative.
asked by Britney on November 8, 2012 
Algebra
Find the reciprocal of a.  1/10 (47) b. ½ / ¼ (hint: solve these first then find reciprocal of the answer)
asked by Arnold on November 13, 2008 
Integral question
1) find the integral from 1to 1 if(5sinx2tanx+3x^5)dx 2) find the integral of x^3/(x^4+1)dx
asked by Sarah on June 26, 2014 
PreCalculus
1. Find functions f and g so that f[g(x)]=H(x) where H(x)=(1+x^2)^3 2. For f(x)=4x+1 and g(x)=x^22x4, find (gf)(x) 3. Determine f(x)=x/x^24 4. Determine the domain of f in f(x)=10sqrt3x
asked by kalakalikalakali on June 28, 2011 
Math
Given that x1 is a factor of f(x)=x^65x^410x^2 k, find the value of k. When k has this value, find another factor of f(x) of the form x a, where a is a constant
asked by Momito on April 30, 2012 
math
Need help in solving these Problem #1 For f(x)=6x3+10 find f(4) and f(4) Problem #2 For g(x)=205x2 find f(1) and f(1)
asked by Anonymous on October 10, 2010 
math need help please
Find the reciprocal of a.  1/10 (47) b. ½ / ¼ (hint: solve these first then find reciprocal of the answer)
asked by Arnold on November 13, 2008 
pre cal
Q1: Find the length and midpoint of segment PQ given P(3,2) and Q(1,4) Q2: The midpoint of AB is M(1/2 , 6). Given A(3,7), find the coordinates of B.
asked by maxine on May 14, 2009 
maths
x is partly constant and partly varies as y.Y =2, x=30 and when y=6, x=50.(a)Find the relationship between x and y.(b)Find x when y=3
asked by kissmore on April 21, 2018 
Math
Let f(x)=x^44x^3+10 Find the first derivative of the function. Find the critical values of the first derivative.
asked by Renee on November 8, 2012 
math
Consider the Standard Normal curve: (a) Find the area between z = 0.45 and z = 1.45 (b) Find the value of z such that the area to the right of z is 1.5%.
asked by yvonne bih on February 24, 2015 
Linear Algebra
Given the following vector X, find a nonzero square matrix A such that AX=0: X=[2 5 3]^T Im not sure how i would find the sqare matrix a?
asked by Angel on October 2, 2017 
math
If 203n + 2m4n = 501n. a. Find the value of base n. b. Find the value of m PS the 'n' is really base n.
asked by Lindsay on December 16, 2013 
Math
First find an estimate of the quotient. then find the exact quotient. 5 1/2 divide 3 4/7
asked by Bryan on May 5, 2009 
Maths
X is partly constant and partly varies as y.when y=2,x=30,and when y=6,x=50. A.Find the relationship between x and y. B.Find x when y =3
asked by Mmesoma on November 25, 2018 
math
how do you find the slope of a line? and is it possible to find it by taking two points on a line?
asked by Anonymous on February 20, 2010 
Geometry
If ST = y + 2, RT = 5y – 10 and RS = 2y, then find the value of y and all three lengths. If RS = 4x, Line RS approximately equal to line ST and RT = 24, then find the value of x.
asked by Patricia on November 15, 2013 
College Algebra
I need to find the domain of f, the excluded values of f, the domain of (fg)(x); find (f+g)(5), (fg)(x), and (fg)(x) to the problem of: Let f(x)=(7x+1)/(3x+2) and g(x)=6x+5.
asked by Gloria on October 16, 2011 
Math
find the slope for (16, 19) and (18, 20) can some please help me I don't understand how to find the slope for this thank you in advance.
asked by Norma on August 20, 2010 
Science
what is the electron arrangement for boron? and how do you find the valence electron for it? i know it has 3 v.e. but how do you find it
asked by Anna on March 17, 2010 
Math Check
1.) Find 1/2([5 2 4 0]+[14 6 18 9]) A. [19/2 2 7 9/2] B. [9/2 4 11 9/2] C. [ 19/2 2 7 9] D. [19 4 14 9] My answer: C. 2.) Is it possible to find AB when you are give A= [3 2 1] and B= [2 3 0]? (this 2, 3, 0 is suppose to line up like up and down.)
asked by Giselle on March 26, 2015 
History
Can someone please tell me where to find this: What was the "Era of Good Feeling" In Germany? All I can find is in the U.S but I need Germany. Thanks
asked by Sue on November 26, 2013 
algebra
If (x3) is a factor of 3x^3+bx^217x12. a. Find the value of b. b.Hence , find the roots fo the equation 3x^3+bx^217x12=0.
asked by jodi on April 16, 2012 
Math
Find all values of x in the interval [0, 2 pi] that satisfy 2 cos x1 = 0. cos x = 1/2 x = 60 How do I find the other value of x?
asked by Raj on September 25, 2007 
Maths
x is partly constant and partly varies with y.When y=5,x=19 and when y=10,x=34. (i) Find the relationship between x and y. (ii) Find x when y=7.
asked by Jessica on October 26, 2018 
Math
I need help in solving this: Problem #1 For f(x)=6x3+10 find f(4) and f(4) Problem #2 For g(x)=205x2 find f(1) and f(1)
asked by Anonymous on October 6, 2010 
Calculus
I have a two part question that pertains to a curve (r(x)) and its tangent line at x=3. We are given that at x=3, r(x)=8. In order to find the slope of the tangent line, we are given another point (on the tangent line): (3.2, 8.5). Therefore the slope of
asked by Lauren on March 31, 2009 
math:^]
Part A Given that P=(5,4), Q=(7,3), R=(8,6), and S=(4,1), find the component form of the vector PQ+3RS. a. **** b. c. d. Part B Use the information from Part A to find the magnitude of the vector PQ+3RS. a. 356 b. sqrt(26) c. 2*sqrt(10) d. 2*sqrt(89) I
asked by mynameisundefined on May 25, 2018 
Calculus 12th grade (double check my work please)
1.)Find dy/dx when y= Ln (sinh 2x) my answer >> 2coth 2x. 2.)Find dy/dx when sinh 3y=cos 2x A.2 sin 2x B.2 sin 2x / sinh 3y C.2/3tan (2x/3y) D.2sin2x / 3 cosh 3yz...>> my answer. 2).Find the derivative of y=cos(x^2) with respect to x. A.sin (2x) B.2x
asked by anon on March 6, 2011 
Geometry
I need help in this problem: A 14foot ladder is leaning against a house so that its top touches the top of the wall. the bottom of the ladder is 8 feet away from the wall. which of these can be used to find the height of the wall? A. in a right triangle
asked by Alex on March 27, 2014 
math help plzzzz!!!!
Multiple Choice 1. What is 0.32 written as a fraction in simplest form? (1 point) thirtytwo over one hundred eight over twentyfive one hundred over thirtytwo sixteen over twentyfive 2. If Fran’s fudge recipe calls for two and onehalf cups of sugar
asked by josh on October 30, 2013 
Physics
Help!?!?! A pontoon boat starts from rest and accelerates at a constant rate of 0.25m/s^2 over a displacement of 290 meters. 1. Find the magnitude of the boats final velocity? 2. Find the time it takes the boat to travel this displacement.
asked by Mike on October 20, 2015 
Math  Intersection of planes
Find the vector equation of the line of intersection for the pair of planes. Plane one: x+5y3z8=0 Plane two: y+2z4=0 I did half of the work but now i am stuck. the normal of the planes are not parallel and therefore a solution exists, you simultaneously
asked by Shaila on September 1, 2010 
Science
A 2cm tall object is placed perpendicular to principle axis of a convex lence of focal length 10cm. The distance of object from lence is 15cm. Find nature of position and size of image. Also find its magnification
asked by Prerna on October 15, 2016 
statisticsPLEASE HELP quick
A family has four children and we assume that births occur with equal frequency for both sexes. Construct a sample space for all possible family arrangements allowing for order of birth to count. a) How many different arrangements are possible? b)find P
asked by Amy on December 16, 2013 
physics
A spacecraft of mass 3.5 x 102kg was moving at 1.5 x 102ms1 when its motor, operating at 8.4 x 102 kW fired for 5.0s Find the new velocity acquired by the spacecraft I don't know how to find the new velocity i found the work Power = w/t 840 x 5 = W 4200J
asked by john on September 6, 2014
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