Saturday

March 28, 2015

March 28, 2015

Number of results: 40,327

**physics**

An athlete whirls a 7.54 kg hammer tied to the end of a 1.5 m chain in a horizontal circle. The hammer moves at the rate of 1.51 rev/s. What is the centripetal acceleration of the hammer? Assume his arm length is included in the length given for the chain. Answer in units of m...
*November 29, 2012 by Anonymous*

**Algebra**

Hi. 1. I have a right triangle here. I know that I am to use the Pythagorean Theorem: a^2 + b^2 = c^2. In this case, side a is (x + 4) and b is x. The hypotenuse is 4 + (x + 4) So here we have the equation: (x + 4)^2 + x^2 = 4 + (x + 4)^2. I need to find the length of a (the ...
*March 11, 2014 by Student*

**Calculus**

The base is an equilateral triangle each side of which has length 10. The cross sections perpendicular to a given altitude of the triangles are squares. How would you go about determining the volume of the solid described? The textbook answer is 500/3(sqrt3) However I got 250 ...
*July 22, 2011 by Chris74*

**MATH MS.SUE HELP PLEASE!**

Could somebody help me I don't understand any of this. Could someone show me or tell me how to work the problems? 1. Find the length of the hypotenuse of a right triangle with the legs of 9cm and 12cm A.8 B.21 C.15 D.225 2.The length of a hypotenuse of a right triangle is 13cm...
*October 18, 2013 by bob*

**math**

Davida bought a pair of earrings, each in the shape of an isosceles triangle with equal side lengths of 24 mm and a base length of 16 mm. She used one earring to make another pair of earrings, similar in shape, with the base length equal to 11 mm. What is the length of the ...
*February 9, 2015 by amber*

**Math**

Davida bought a pair of earrings, each in the shape of an isosceles triangle with equal side lengths of 24 mm and a base length of 16 mm. She used one earring to make another pair of earrings, similar in shape, with the base length equal to 11 mm. What is the length of the ...
*February 27, 2015 by Al*

**algebra**

Two questions actually. Please only respond with step-by-step answers. Feel free to change the numbers, I just need to know how to do it... 1.) Factor Completely: 4a^2 + 81 - 36a 2.) In a right triangle, find the length of the side not given. b= 2 c= sqrt. 13
*May 2, 2010 by Jenny*

**geometry**

in the digram below,prove that trianglel lmn is similar to trangle lopnafter ur proof, slove for the length of side mn(side lm=4,side Mo=8,and side op=15).
*May 16, 2012 by bishar*

**algebra**

an isosceles triangle is one in which two sides are the same length. The perimeter of an isosceles triangle is 36cm if the length of the congruent sides is 4 times the length of the third side, find the dimentions of the triangle
*February 12, 2015 by Mia*

**math**

If the sides of a square are lengthened by 8cm, the area becomes 144 cm^2 Find the length of a side of the original square. The length of a side of the original square is?cm
*February 4, 2010 by Tina*

**Physics**

Figure below shows a closed Gaussian surface in the shape of a cube of edge length l. It lies in a region where the electric field is given by = (ax + a) + b + c. What is the net charge contained by the cube in terms of the given variables? Use ε0 if necessary.
*January 23, 2011 by Antoine*

**math**

If a triangle has a side with length 6 and another side with length 7, which of the following could NOT be the area of the triangle? a) 1 b) 6 c) 15 d) 21 e) 25
*August 8, 2012 by Anonymous*

**Algebra II**

Each of the three dimensions of a cube with sides of length s centimeters is decreased by a whole number of centimeters. The new volume in cubic centimeters is given by V(s) _ s3 _ 13s2 _ 54s _ 72. a) Find V(10). b) If the new width is s _ 6 centimeters, then what are the new ...
*June 20, 2010 by Anonymous*

**math**

If length of one side of a 3x3 square is four times, and the length of the adjacent side is tripled, the perimeter of the new rectangle is how many times bigger than the perimeter of the original square? please explain and show work.
*July 16, 2014 by Johnny *

**Physics**

An athlete whirls a 7.17 kg hammer tied to the end of a 1.5 m chain in a horizontal circle. The hammer moves at the rate of 1.76 rev/s. What is the centripetal acceleration of the hammer? Assume his arm length is included in the length given for the chain. Answer in units of m...
*February 12, 2013 by Chelsea *

**Calculus and vectors**

Could someone explain to me how I can find the area/perimeter/volume of a rectangular prism if I am given R^3 points. For example find area of rectangular prism given pts (2,3,4)(5,3,2), similar to this.
*March 21, 2012 by Jake*

**Precalculus**

There are 4 rectangular corrals of identical dimensions along the back wall of an existing barn using 200 ft of fencing. The diagram has 4 rectangular corrals attached together but fencing is not needed on the back wall of the barn. The barn is above the 4 rectangular corrals...
*October 5, 2012 by Cole*

**algebra**

1.Write a quadratic equation in the variable x having the given numbers as solutions. Type the equation in stadard form ax^2+bx+c=0 Solution 7, only solution 2.The width of a rectangle is less than the length. The area is 4ft^3. Find the length and the width.
*December 17, 2011 by lisa*

**Algebra**

the length of the longer leg of a right triangle is 13 ft more than 3 times the length of the shorter leg. the length of the hypotenuse is 14 ft more than 3 times the length of the shorter leg. Find the side lengths of the triangle
*October 11, 2014 by Jd*

**Algebra Homework, HELP!**

1) A rectangle has an area of 297 square inches and a width which is three inches less than four times the length. Find the length and the width of the rectangle. 2) Let x represent the length of the shorter leg in a right triangle. If the longer leg is 1 more than the ...
*October 14, 2013 by Preston*

**MATHEMATICS_algebra**

A rectangular brass sleeve has a square base of side (x) cm and height (h) cm, its weight (w) kg is given by a formula w= (3x^2h)/10. How is w changed if x is trebled and h is halved?
*February 7, 2012 by PDF*

**Physics **

An athlete whirls a 7.36 kg hammer tied to the end of a 1.5 m chain in a horizontal circle. The hammer moves at the rate of 1.07 rev/s. What is the centripetal acceleration of the hammer? Assume his arm length is included in the length given for the chain. What is the tension ...
*January 28, 2013 by Bret*

**Physics **

An athlete whirls a 7.36 kg hammer tied to the end of a 1.5 m chain in a horizontal circle. The hammer moves at the rate of 1.07 rev/s. What is the centripetal acceleration of the hammer? Assume his arm length is included in the length given for the chain and What is the ...
*January 28, 2013 by O'Brien*

**Physics**

A lens with a focal length of 25 cm is placed 45 cm in front of a lens with a focal length of 5.0 cm. a) How far from the second lens is the final image of an object infinitely far from the first lens? b) Is the image in part a in front of or behind the second lens?
*February 23, 2013 by Cassie*

**math**

a rectangular box with a volume of 60 ft^3 fas a square base. Find a funtion that models its surface area S in terms of the length x of one side of its base
*November 8, 2008 by lauren*

**geometry**

Emma has 26 feet of fence. She wants to make the largest rectangular area possible for her rabbits to play in. What length should she make each side of the rabbit pen?
*November 17, 2010 by Jeremy*

**Math**

Monte has a small rectangular herb garden that has a length 3 yd longer than twice its width. If the area of the garden is 50 yd^2, what is the length of the garden, to the nearest tenth of a yard?
*December 31, 2011 by Lauren*

**eastlake emelentary **

the formal for the volume of a cube is V=e to the third power where e is the length of a side of the cube. find the volume of a cube with side length of 6cm.
*August 20, 2014 by Angela*

**math pls**

The lengths of segments PQ and PR are 8 inches and 5 inches, respectively, and they make a 60-degree angle at P. (d) Find the sizes of the other two angles of triangle PQR. (e) Find the length of the median drawn to side PQ. (f) Find the length of the bisector of angle R. (g) ...
*April 21, 2010 by Maryann*

**geometry/math pls help**

The lengths of segments PQ and PR are 8 inches and 5 inches, respectively, and they make a 60-degree angle at P. (1) Find the sizes of the other two angles of triangle PQR. (2) Find the length of the median drawn to side PQ. (3) Find the length of the bisector of angle R. (4) ...
*April 21, 2010 by Maryann*

**math**

the area of an equilateral triangle is given by the expression s^2 x square root of 3/4, where s is the side length of the triangle. what is the area of the triangle? round to the nearest tenth the triangle is 5 cm on all three sides.
*December 26, 2014 by math*

**Geometry**

The length of a rectangular playing feild is 5ft lessthan twice the width. If the perimeter of the playing field is 230ft, what is the length of the playing field. x=length y=width we know: 2x+2y=230 x+5=2y Solve using systems. Easiest is to substitute x+5 for 2y into the ...
*March 28, 2007 by Jason*

**Calculus**

A rancher wants to build a rectangular pen with an area of 150 m^2? a. Find an equation for the perimeter P in terms of W and L . b. Use the given area to write an equation that relates W and L . c. Find the pen dimensions that require the minimum amount of fencing. Width = ...
*May 29, 2013 by Leslie*

**AP Calculus**

Two sides of a triangle are 15 and 20 feet in length. How fast is the third side increasing if the angle between the given sides is 60 degrees and is increasing at a rate of 2 degrees per second.
*October 26, 2006 by Sarah*

**8th grade**

Please help me how you get the answer. PLEASE I NEED HELP. A triangle sail has a perimeter of 25 m. Side a is 2 m shorter than twice side b, and side c is 3 m longer than side b. Find the length of each side. Thank you ver much for helping me
*October 27, 2010 by Glenda*

**physics**

A rod of length 30.0 cm has linear density (mass-per-length) given by lambda = 50.0 g/m + 20.0 y g/m2 , where y is the distance from one end, measured in meters. (a) What is the mass of the rod? (b) How far from the y = 0 end is its center of mass?
*May 18, 2013 by Anonymous*

**Algebra**

How would I complete this problem? Geometry. The area of a rectangle of length x is given by 3x^2 + 5x. Find the width of the rectangle. I think the width is 3x+5 but not sure. Subjects Art Business Computers English Foreign Languages Health Home Economics Mathematics Music ...
*June 5, 2007 by Loreal*

**Math**

The area of a rectangle is shown below The area of the rectangle is 56 Which of the following are possible values for the length and width of the rectangle? A.length=6cm and width=9cm B.length=7cm and width=8cm C.length=14cm and width=14cm D.Length=28cm and width=28cm B? What ...
*March 6, 2013 by Jerald*

**shortest fence**

this is my last question from applications of derivatives! A 216m^2 rectangular pea patch is to be enclosed by a fence and divided into two equal parts by another fence parallel to one of the sides. What dimensions for the outer rectangle will require the smallest total length...
*November 18, 2006 by Jen*

**physics**

A rod of length 30.0 cm has linear density(mass-per-length) given by [lambda]= 50.0g/m + 20.0x g/(m^2) where x is the distance from one end, measured in meters.(a) What is the mass of the rod? (b) How far from the x=0 end is its center of mass? never mind. i got it.
*April 19, 2007 by jean*

**Math**

a rectangle is 3 times as wide as a square. the rectangle's length is 15 ft shorter than 5 times the square's length. Given that the sum of the two perimeters must be less than 150 ft, find the set of all possible lengths for the rectangle
*September 14, 2009 by Roy*

**Physics**

In moving a 35.0 kg desk from one side of a classroom to the other, a professor finds that a horizontal force of 300 N is necessary to set the desk in motion, and a force of 185 N is necessary to keep it in motion at a constant speed. (a) What is the coefficient of static ...
*September 20, 2010 by George*

**math**

2m shorter than twice side b and side c 3m longer than side b find the length of each side
*April 25, 2011 by jem,s*

**Math**

Find the length on each side of a triangle. Perimeter - 35m side 1 - x side 2 - x+2 side 3 - x+3
*February 5, 2015 by thi*

**Square roots**

The diagonal of a square has length square root 2 X s, where s is the length of a side of the square. What is the length of the diagonal in a square with sides that are 13 cm? Round your answer to the nearest tenth.
*March 7, 2012 by Maddy*

**math**

The length of a rectangular landing strip exceeds its width by 3,700 feet. If its perimeter is 17,400 feet, what is the length, in feet, of the airfield? A. 2500 B. 5000 C. 6200 D. 10000 E. 13700
*August 14, 2014 by Matt*

**Trig (math)**

1.) Find all solutions of the equation. Leave answers in trigonometric form. x^2 + 1 - sqrt3i = 0 2.) Give the rectangular coordinates for the point. (9, 2pi/3) 3.) The rectangular coordinates of a point are given. Express the point in polar coordinates with r L 0 and 0° K ...
*December 8, 2014 by Anonymous*

**Geometry help**

A parallelogram has a 7-inch side and a 9-inch side, and the longer diagonal is 14 inches long. Find the length of the other diagonal. Do you need your calculator to do it? then, (Continuation) Evaluate 72 + 92 + 72 + 92 − 142 − d2, where d is the length of the ...
*April 21, 2010 by Ella*

**physics**

A 14.5 metal wire is cut into three equal pieces that are then connected side by side to form a new wire the length of which is equal to one-third the original length. What is the resistance of this new wire? Answer in units of .
*March 26, 2010 by Anonymous*

**physics**

A 14.5 metal wire is cut into three equal pieces that are then connected side by side to form a new wire the length of which is equal to one-third the original length. What is the resistance of this new wire? Answer in units of .
*March 26, 2010 by Anonymous*

**geometry**

The surface area of a rectangular prism is 190 square inches, the length is 10 inches, and the width 3 inches. Find the height. I know how to do SA but I don't understand how to find height if you have SA given. The answer is 5 in but I am not able to come up with the right ...
*May 23, 2011 by Mary *

**geometry**

The surface area of a rectangular prism is 190 square inches, the length is 10 inches, and the width 3 inches. Find the height. I know how to do SA but I don't understand how to find height if you have SA given. The answer is 5 in but I am not able to come up with the right ...
*May 23, 2011 by Mary *

**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.
*May 14, 2009 by maxine*

**geometry**

ok i have 2 problems and id appreciate it if someone can help :) 1. given hexagon ABCDEF with diagonal AC being 2 calculate the area and perimeter of the hexagon. 2. the perimeter of an equilateral triangle is equal to its area. find the side length
*December 12, 2011 by Henry*

**math**

The area of a square with a side length of s is s to the second power. What is the area of a square with a side length of 3 inches?
*August 26, 2011 by natalie*

**Algebra**

SOlve you have 78 feet of fencing to enclose a rectangular pasture by a barn. If you do not fence the side along the barn, find the length and width of the lot that will maximize the area
*March 5, 2013 by Anonymous*

**algebra**

Decreasing cube. Each of the three dimensions of a cube with sides of length s centimeters is decreased by a whole number of centimeters. The new volume in cubic centimeters is given by V(s) = s3 - 13s2 + 54s -72. a) Find V(10). b) If the new width is s - 6 centimeters, then ...
*July 10, 2009 by Sandra*

**Physics**

You set up a ramp on your desk at home. Marbles rolling down the ramp and horizontally off your desk consistantly land 52.0 cm from the base of your desk. Your desk is 69.0 cm high. If you pull your desk over to the window of your second story room and "launch" marbles to the ...
*November 5, 2009 by Anonymous*

**Math**

A designer's architectural drawing has a room which is 1 3/4 by 2 5/8 inches. If the scale is 1 foot = 1/8 inch a) find the length of the longer side of the room feet b) find the length of the shorter side of the room feet
*February 11, 2008 by Mike*

**geometry**

given that BD and AC are perpendicular, what is the length of Ac? AB=9.4 BD=7.9 BC=23.2
*April 27, 2011 by ashlie*

**PHYSICS**

how to calculate formula for period of a cylinder that depends on radius(cm), length(cm) and time(sec). If a radius is 3.84 and at length(30)=.83sec length(100)=3.31sec length(200cm)=6.04sec
*May 18, 2008 by josh*

**math **

how to rewrite rule in symbols: At a certain time of day,the length of a shadow s cast by an object is twice the length of the object L each length h in a copy 1/100 the length k in the original
*November 30, 2010 by ursula*

**math **

how to rewrite rule in symbols: At a certain time of day,the length of a shadow s cast by an object is twice the length of the object L each length h in a copy 1/100 the length k in the original
*November 30, 2010 by ursula*

**math**

thanks anyone! A right prism has a polygonal base with n sides. Each side has a length of 5 in. The altitude of the prism is 20 in. If the base had n+1 sides, each still having a side of length 5 in, by how much, in square inches, would the lateral area of the prism increase ...
*August 23, 2011 by scott*

**Math algebra **

the length of a rectangular photograph is 8in. more than the width. if the area is 560 in^2 what are the dimensions of the photograph? the width is____ in. and the length is ____ in.
*February 15, 2013 by college student*

**algebra story problem**

the length of a rectangular photograph is 8in. more than the width. if the area is 560 in^2 what are the dimensions of the photograph? the width is______ in. and the length is _______ in. help? thanks!
*February 15, 2013 by pepper*

**algebra story problem**

the length of a rectangular photograph is 8in. more than the width. if the area is 560 in^2 what are the dimensions of the photograph? the width is______ in. and the length is _______ in. help? thanks!
*February 15, 2013 by pepper*

**algebra story problem**

the length of a rectangular photograph is 8in. more than the width. if the area is 560 in^2 what are the dimensions of the photograph? the width is______ in. and the length is _______ in. help? thanks!
*February 15, 2013 by pepper*

**algebra story problem**

the length of a rectangular photograph is 8in. more than the width. if the area is 560 in^2 what are the dimensions of the photograph? the width is______ in. and the length is _______ in. help? thanks!
*February 15, 2013 by pepper*

**algebra story problem**

the length of a rectangular photograph is 8in. more than the width. if the area is 560 in^2 what are the dimensions of the photograph? the width is______ in. and the length is _______ in. help? thanks!
*February 15, 2013 by pepper*

**college algebra**

An open box is made from a square piece of cardboard 20 inches on a side by cutting identical squares from the corners and turning up the sides.(a) Express the volume of the box, V , as a function of the length of the side of the square cut from each corner, x. (b) Find and ...
*September 27, 2012 by danny*

**math**

Jack has 222 lego cubes, each of side length 1. He puts them together to form a rectangular prism. If the perimeter of the base of the prism is 10, what is the height of the prism?
*May 27, 2013 by Mathslover*

**Physics**

In moving a 35.0 kg desk from one side of a classroom to the other, a professor finds that a horizontal force of 300 N is necessary to set the desk in motion, and a force of 185 N is necessary to keep it in motion at a constant speed. (a) What is the coefficient of static ...
*September 22, 2010 by Greg*

**algebera**

1) Identify the solid form by the given net. :Triangular Prism :Triangular Pyramid*** :Cone :Triangle 2) Name the solid according to it's description: The figure has two bases that are parallel congruent circles. :Cylinder*** :Rectangular Prism :Sphere :Cone 3) Identify the ...
*February 10, 2015 by 3-D Figure and Nets*

**Algebra 2**

Posted by Christian on Monday, May 7, 2007 at 11:34am. The area of a rectangular blanket in square centimeters is 40x^2+2x-65. The width is 4x-5 cm^2. Find the dimensions of the blanket in terms of x. For Further Reading Algebra 2 - Brown, Monday, May 7, 2007 at 2:40pm What is...
*May 7, 2007 by Christian*

**geometry**

Which of these tables correctly matches the list of tools with the task that can be performed with the tools? Answer A.pencil, string, ruler = duplicate a rectangle B.pencil, compass, straightedge = duplicate a triangle C.pencil, straightedge, ruler = make an exact replica of ...
*September 20, 2011 by Anonymous*

**math**

if a rectnagular prism has a height of h, the, width of the prism is six less than h and the length of the prism is one fourth of the length, find an equation for the volume of the rectangular prism in therms of h
*December 22, 2010 by joe*

**math**

Solve. Please show all of your work. Find the length and width of a rectangular lot with a perimeter of 108 meters if the length is 8 meters more than the width.
*August 15, 2011 by christine*

**algebra**

The area of a rectangular wall of a bran is 96 square feet. Its length is 4ft. longer than the width. Find the length and width of the wall.
*September 8, 2008 by Michael*

**Pre-Algebra**

The length of a rectangular jewelry box is 5 inches more than twice the width. The perimeter is 28 inches. Find the length and the width.
*November 29, 2010 by Willie*

**math**

A rectangular field is 35 m longer than it is wide. The length of the fence around the perimeter of the field is 290 m. What are the dimensions (length and width) of the fence?
*January 4, 2013 by mary*

**math**

A rectangular field is 35 m longer than it is wide. The length of the fence around the perimeter of the field is 290 m. What are the dimensions (length and width) of the fence?
*January 4, 2013 by mary*

**Math**

The Gilberts are designing a rectangular patio for their backyard. The patio has an area of 432 square feet. The width of the patio is 3/4 its length . What is the length of the patio ?
*March 11, 2015 by Abhishek*

**Math**

The Gilberts are designing a rectangular patio for their backyard. The patio has an area of 432 square feet. The width of the patio is 3/4 its length . What is the length of the patio ?
*March 11, 2015 by Joo*

**mat117/algebra**

The area of a rectangle of length x is given by 3x^2 + 5x. Find the width of the rectangle. Show me the formula and how to use it please. area= length times width 3x^2 + 5x = x * width divide both sides by x, then you have width.
*June 24, 2007 by Diana*

**bnhs**

a regular triangle and a regular hexagon have the same perimeter length.If the length of a side of hexagon is 20cm,how long is each side of the triangle?
*July 19, 2010 by tintin*

**Physics**

As you know, a cube with each side 4 m in length has a volume of 64 m3. Each side of the cube is now doubled in length. What is the ratio of the new volume to the old volume? Why is this ratio not simply 2? Include a sketch with dimensions.
*December 8, 2010 by Coty*

**algebra**

Jeffrey is building a rectangular flower garden, width is "w" and length is w + 3. Write a a mathematical expression for the length and an algebraic expression for the area of the garden in binomial descending order.
*March 24, 2010 by Ina Boston*

**algebra**

find a table or other rectangular object and measure the length width and perimeter use feet or inches as your unit of measure express the length in terms of the width
*February 21, 2012 by Anonymous*

**Physics**

1) Suppose that you wish to fabricate a uniform wire out of 1.15 g of copper. Assume the wire has a resistance R = 0.600 , and all of the copper is used. (a) What will be the length of the wire? m? (b) What will be the diameter of the wire? µm? 2) A rectangular block of copper...
*October 4, 2010 by Max*

**Physics**

1) Suppose that you wish to fabricate a uniform wire out of 1.15 g of copper. Assume the wire has a resistance R = 0.600 , and all of the copper is used. (a) What will be the length of the wire? m? (b) What will be the diameter of the wire? µm? 2) A rectangular block of copper...
*October 4, 2010 by Tommy*

**algerbra**

the length of a rectangular jewlery box is 6 inches more than twice the width. the perimeter is 54 inches find length and width.
*October 12, 2010 by donna*

**algebra**

the length of a rectangular jewlery box is 6 inches more than twice the width. the perimeter is 36 inches. find the length and width?
*October 19, 2010 by john*

**geometry**

The length of a rectangular garden is two feet less than five times the width. If the perimeter is 72 feet, what is the length of the garden?
*March 28, 2011 by Anonymous*

**Algebra**

The width of a rectangular plot is 2 feet longer than one-third the length. If the perimeter of the plot is 68 feet, find the length. HELP!!!!
*January 17, 2012 by gdlola*

**math**

A rectangular lot is surrounded by a rock wall 46 meters in length. What are the dimensions of the lot if its length is 5 meters longer than its width
*March 17, 2012 by Kassie*

**algebra **

the length of a rectangular photograph is 5in. more than the width. If the area is 50 in^2 what are the dimensions of the photograph? the width is__in. and the length is ____in.
*February 15, 2013 by student*

**Math check**

Find the area of the top of an office desk with a length of 2 yd. and a width of 7/8 yd. Answer: 14/8
*October 8, 2011 by Alex L.*

**math**

a pentagon has a perimeter of 50 cm. the shortest side has a length of 3 cm. find the length of a similar pentagon if the perimter of the second penatgon is 80 cm ?
*September 25, 2013 by dustin*

**Geometry**

The length of each side of a rhombus is 16. The longer diagonal has length 26. Find the measures of the angles of the rhombus to the nearset degree.
*September 30, 2013 by George*

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