Thursday

May 28, 2015

May 28, 2015

Number of results: 13,594

**Math**

Danny needs to buy sand for this box. He wants to nearly fill the box leaving only 6 inches empty at the top. How much sand does Danny need if the length is 12 feet the width is 2 feet and the height is 3 feet. I first found the volume which was 72 feet and since 1 ft=12 ...
*February 4, 2014 by Jerald*

**Algebra**

A board 5 feet long is cut into two pieces such that the length of one piece is two-thirds of the length of the other piece. Find the length of the shorter piece of board
*January 29, 2013 by Chanelle*

**math**

a wire 54cm long is cut into three pieces. the second piece is twice the length of the first, and the third piece is three times the length of the first. Find the length of each piece?
*December 11, 2013 by shariza*

**Math**

You complete 3centimeters of a necklace in an hour. Each hour after the first, you triple the length of the necklace. Write an expression using exponents for the length of the necklace after three hours. Then find the length.
*September 19, 2014 by Erik*

**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*

**Calculus**

You are an engineer in charge of designing the dimensions of a box-like building. The base is rectangular in shape with width being twice as large as length. (Therefore so is the ceiling.) The volume is to be 1944000 m3. Local bylaws stipulate that the building must be no ...
*November 13, 2011 by Veronica*

**physics**

A pendulum clock can be approximated as a simple pendulum of length 1.20m and keeps accurate time at a location where G=9.83m/s2. In a location where g=9.73m/s2, what must be the new length of the pendulum, such that the clock continues to keep accurate time9 that is, its ...
*March 31, 2007 by Cavin*

**Physics**

A vertical container with base area of length L and width W is being filled with identical pieces of candy, each with a volume of v and a mass m. Assume that the volume of the empty spaces between the candies is negligible. If the height of the candies in the container ...
*September 1, 2014 by AGuy*

**Math**

The first question is this: Helen designs a rectangle with an area of 225 square units. Her rectangle is the largest rectangle (that is, with largest area) with whole-number side lengths that can be made from the perimeter of the rectangle. A. Whay are the length and width of ...
*February 25, 2013 by Gabby*

**phys**

a spaceship travels with a speed of 0.7c as it passes by the Earth on its way to a distant star. The pilot of the spaceship measures the length of the moving ship as 50m. Determine its length as measured by a person on Earth. Answer in units of m. for this question, do I just ...
*October 10, 2006 by slien*

**phys**

a spaceship travels with a speed of 0.7c as it passes by the Earth on its way to a distant star. The pilot of the spaceship measures the length of the moving ship as 50m. Determine its length as measured by a person on Earth. Answer in units of m. for this question, do I just ...
*October 12, 2006 by slien*

**math,correction,plz**

Perform the indicated division. Rationalize the denominator if necessary. Then simplify each radical expression. Problem #54 (6-radical(20))/(2) My answer: 3-radical(5) Problem #50 Find the area of the rectangle shown in the figure. width = radical (3) + radical (5) Length = ...
*March 10, 2007 by jas20*

**math gr.10**

Hi! I have been stuck on this problem for the past 20 minutes. Please help! A rectangular garden 30m by 40m has two paths of equal width crossing through as shwon. Find the width of each path if the total area covered by the paths s 325m^2. () - represents garden t - ...
*May 11, 2011 by jamie*

**math**

Rachel cut a length of rope 4 1/3 meters into two pieces. The length of one piece of rope is 2 1/2 meters. What is the length of the second piece of rope. Please answer and explain.
*April 3, 2013 by Anonymous*

**Math**

You complete 3 centimeters on your necklace in an hour. Each hour after the first,you triple the length of the necklace. Write an expression using exponents for the length of the necklace after 3 hours.Then find the length.
*September 16, 2014 by Mark*

**Calculus**

Luke and Leia are trapped inside a trash compactor on the Death Star. The side walls are moving apart at 0.1 m/sec, but the end walls are moving together at 0.3 m/sec. The volume of liquid inside the compactor is 20 cubic meters, a constant. Write an equation expressing the ...
*March 19, 2011 by Amanda E.*

**Elasticity (Physics)**

A tunnel of length L=150m, height H=7.2m, and width w=5.8m (with a flat roof) is to be constructed at a distance d=60m beneath the ground. The tunnel roof is be entirely supported by square steel columns, each with a cross sectional area of 960 cm^2. The mass of 1.0 cm^3 of ...
*September 9, 2009 by David*

**physics 121 hanging sign**

A sign has a mass of 1050 kg, a height h = 1 m, and a width W = 4 m. It is held by a light rod of length 5 m that is perpendicular to a rough wall. A guy wire at 23° to the horizontal holds the sign to the wall. Note that the distance from the left edge of the sign to the wall...
*July 14, 2010 by Jay*

**calculus**

The top and bottom margins of a paster are each 6 cm and the side margins are each 4cm. If the area of printed material on the poster is fixed at 384cm^2, find the dimensinos of the poster with the smallest area. I would like to know if my work is correct. x = width of print y...
*November 20, 2011 by Daniel*

**Physics: Angular Width. Why is my answer wrong?**

A beam of yellow laser light (590 nm) passes through a circular aperture of diameter 5.0 mm. What is the angular width of the central diffraction maximum formed on a screen? I can't seem to get this answer right. I don't think I am finding the first part of the problem ...
*November 12, 2010 by Sar*

**Math**

Jan built a cube from unit cubes (each 1 by 1 by 1 unit). Ken took this cube apart,and used the unit cubes to build a rectangular solid that was the same height asJan's cube but 2 units greater in width and 2 units less in length. Ken had 24 unit cubes left over. How many unit...
*May 1, 2013 by Nate Williams*

**alegebra**

1. What is the factored form of 4x 2 + 12x + 5? (1 point) (2x + 4)(2x + 3) (4x + 5)(x + 1) (2x + 1)(2x + 5) (4x + 1)(x + 5) 2. What is the factored form of 2x 2 + x – 3? (1 point) (2x + 3)(x – 1) (2x + 1)(x – 3) (2x – 3)(x + 1) (2x – 1)(x + 3) 3. The area of a rectangular ...
*February 4, 2014 by fluffy*

**AlgebraII**

PLEASE HELP! I DO NOT KNOW WHAT TO DO? The maximum weight that a rectangular beam can support varies jointly as it's width and the square of its height and inversely as its length. If a beam 1/2 foot wide, 1/3 foot high, and 10 feet long can support 12 tons find how much a ...
*February 18, 2012 by Tina*

**Math (Proportions)**

3. The ratio of the altitude of a triangle to the length of its base is 5:12. Calculate the altitude if the length of the base is 42mm. 17.5 length/base= 5/12=x/42= 17.5
*October 18, 2013 by Jerald*

**Algebra- word problem**

Jordan has a photograph on his wall that is 3 in. long and 6 in. wide. He takes it to be framed which increases the length and width by 2 in. each. How does getting the picture framed change the amount of wall space needed? My choice is B- Correct?? Choices A. the wall needed ...
*May 15, 2011 by Mary *

**Physics repost please help**

The mass of a string is 6.0 x 10^-3 kg, and it is stretched so the tension in it is 195 N. A transverse wave traveling on this string has a frequency of 260 Hz and a wavelength of 0.60 m. What is the length of the string? Isn't wavespeed= sqrt(Tension/(mass/length)) you know ...
*April 27, 2007 by Mary*

**Math**

Zain goes swimming. He swims the first length of the pool in 2.5 minutes. The time he takes to swim each length is 10 seconds more than he took to swim the previous length. A. Find the time Zain takes to swim the fifth length. B. Find the time taken for Zain to swim a total of...
*March 19, 2015 by Sam*

**Melanie**

A right triangle has a hypotenuse of length 13 meters and one side of length 5 meters. What is the length of the third side and the angle between the hypotenuse and the 5 meter side? A. 144 meters, 67.38 degrees B. 12 meters, 22.62 degrees C. 10 meters, 22.62 degrees D. 12 ...
*January 19, 2013 by Physics*

**geometry**

the quadrilateral has a pweimeter of 60 meters. mp and no are congruent the length of mn is 10 meters and the length of no is 15 meters what is the length of po
*November 7, 2010 by emily *

**math - Calc optimization**

You are an engineer in charge of designing the dimensions of a box-like building. The base is rectangular in shape with width being twice as large as length. (Therefore so is the ceiling.) The volume is to be 1944000 m3. Local bylaws stipulate that the building must be no ...
*March 29, 2011 by J Velji*

**Algebra Grade 7**

the ratio of square H's length to square I's length is 3 : 5, if the length of square H is 18 meters, what is the perimeter of square I?
*October 9, 2012 by randomchik*

**Maths**

A drinking straw of length 21cm is cut into 3 pieces the length of the first piece is x cm the second piece is 3 cm shorter than the first piece the third is twice as long as the first piece state term of x to represent the sum of of the length {2} write an expression in the ...
*August 18, 2012 by RAHEIM*

**math**

The lawn is rectangular shaped with a length of 10 yards and a width of 40 yards. A bag of grass seeds covers 50 square yards at a cost of $ 4.99 per bag. What is the total area of the new lawn? How many bags of grass seeds will they need to buy? What is the total cost to ...
*February 5, 2014 by sharon*

**Math**

There is a mathematical relationship between an airplane’s weight x and the runway length required at takeoff. For certain types of airplanes, the minimum runway length L in thousands of feet may be modeled by L(x) = 1.3 ln x, where x is in thousands of pounds. a) Estimate the...
*April 25, 2013 by Tamie*

**algebra**

A triangle has a perimeter of 161 miles. The length of each of the two shorter sides of the triangle is two thirds the length of the longest side. Find the length of each side of the triangle.
*September 15, 2014 by tor*

**math question grade 8!!**

shelby wants to paint the walls and ceiling of a rectangular room. (height:2.6cm, width:4.8cm, length:6.8cm) type of paint size of paint can cost wall paint 4L $24.95 1L $7.99 ceiling paint 4L $32.95 (one litre of paint covers 9.5 m) a) what is the least amount of paint shelby...
*December 5, 2013 by anonymous*

**oscillations**

A human wave. During sporting events within large, densely packed stadiums, spectators will send a wave (or pulse) around the stadium (Fig. below). As the wave reaches a group of spectators, they stand with a cheer and then sit. At any instant, the width w of the wave is the ...
*May 3, 2009 by chirayu*

**algebra**

The length of the base of an isosceles triangle is one fourth the length of one of its legs. If the perimeter of the triangle is 16 inches, what is the length of the base?
*October 16, 2011 by amanda*

**Trig **

The length of the base of an isosceles triangle is one fourth the length of one of its legs. If the perimeter of the triangle is 16 inches, what is the length of the base?
*June 11, 2012 by Rina *

**algebra 1**

The length of the base of a isosceles triangle is one forth the length of one of its legs. If the premimeter of the triangle is 16 inches, what is the length of the base.
*October 9, 2013 by Kayla*

**physics**

finding the acceleration of a simple pendulum g= 4pi^2 x length/T^2 T^2= 2.28 length= 70cm
*January 8, 2009 by Kayleigh*

**Math**

What is the ratio comparing the length in a drawing to the corresponding length of the object is called?
*February 9, 2011 by Lauren*

**geometry**

In the diagram, UW and VW are midsegments of triangleRST. Suppose the length of UW is 78 inches. Find the length of VS.
*January 20, 2012 by ghalia*

**geometry**

how many times the length of the diameter would divid into the length of the equator
*March 18, 2012 by Anonymous*

**hypothenuse**

The length of the shorter leg of a 30°-60°-90° triangle is equal to 6 inches. What is the length of its hypotenuse
*April 25, 2012 by Mr fluffy pants*

**math**

isosceles triangle base length 21cm and side length 32cm
*February 8, 2013 by Anonymous*

**math**

PQ is a chord of length 8 cm of a circle of radius 5 cm . The tangents at P and Q intersects at T. Find the length of TP.
*February 24, 2013 by Anonymous*

**Math**

A floor plan has a scale of 1/4 in : 5 ft. Find the length on the drawing for an actual length of 60 ft.
*April 17, 2013 by Jennifer Roberts*

**math**

the length of a rectangle is 3 times its breadth.its perimeter is 64cm.find its length?
*April 28, 2014 by Anonymous*

**Geometry**

A circle R has a radius of length 5 sqrt 3 and has a chord XY that is 5 units from R. Find the length of XY.$
*August 5, 2014 by Sheenybeany*

**algebra**

Find the length of a side of an equilateral triangle with altitude of length 6.
*March 2, 2010 by chica*

**math**

The hypotenuse of a 30- 60- 90 triangle has length 17. What is the length of the side opposite the 60 angle?
*April 26, 2010 by mikemike*

**physics**

why is radius of the bob added to length of the string to know the length of the pendulum.
*June 1, 2010 by taker*

**math **

how to rewrite in symbols each length h in a copy 1/100 the length k in the original
*November 30, 2010 by ursula*

**math**

Chords AC and BD intersect at the center of circle ABCD. If the length of CP = 8, which is the length of PB?
*March 31, 2011 by mark*

**physcis**

in order to determine the width of a river, a base line of 100 ft is marked off on one side. On the other side of the river is a large rock. When sighted from each end of the base line it is found that the lines of sight make angles of 60 degrees and 75 degrees, respecively, ...
*September 23, 2007 by Casandra*

**Physics help**

Let's say you have a plot for Pendulum experiment. Let's assume g for this experiment was measured (from the slope of the plot) to be 9.78 [ms-2. The vertical intercept, however, is 0.011 [s2]. What might this translate to for a measurement of the length offset systematic in ...
*April 29, 2014 by Anonymous.*

**scales in algebra**

the actual length of the dust mite is 0.3 mm. the length of the image is 21 mm. what is the scale of the drawing?
*September 24, 2008 by amanda*

**math**

How can I solve this problem. Find the missing length of the right triangle. 7 height and 24 length
*September 25, 2008 by PJ*

**physics**

How do you determine strain and stress of a spring when given force, length, and change in length?
*December 7, 2009 by Alex*

**algebra 1**

Find the length of the hypotenuse of a right triangle whose legs are 8 and 15 units in length.
*January 4, 2010 by yelena*

**algebra**

Find the length of the hypotenuse of a right triangle whose legs are 8 and 15 units in length.
*January 6, 2010 by yelena*

**physics**

A pipe of length 10.0 m increases in length by 1.5 cm when its temperature is increased by 90°F. What is its coefficient of linear expansion?
*December 19, 2010 by Jesse*

**Geometry **

Find the length of the altitude of an isosceles triangle if one side has a length of 20 ft and a base of 14 ft?
*March 9, 2011 by Jay*

**geometry**

A parallelogram has sides of length 3 and 5 and a diagonal length 10. is the quadrilateral a rectangle? please explain
*March 20, 2011 by lily*

**trig**

a right triangle contains a 25 angle. if me leg is of length 5 inches what is the length of the hypotenuse
*December 7, 2011 by vanessa aquino*

**Math**

An electric circuit has equally spaced parallel wire with connections A, B, and C. If the length of AP = 3.42 cm, what is the length of BC?
*April 17, 2012 by Liz*

**geometry**

If point P is at the center of the circle, and the length of chord equals 12 inches, which is the length of the radius ?
*May 16, 2012 by Anonymous*

**geometry**

AB has a length of 5 cm the line segment is dilated to produce A'B' which has a length of 2 cm what is the scale factor of the dilation
*April 21, 2013 by Dannelle*

**College math**

The length of the sides of a triangle are given as 8, 15, 17. The hypotenuse is the side that is the length of ____?
*March 13, 2014 by Cassandra*

**physics**

A student opens a 12.0 kg door If the door is 2.00 m in height and 1.00 m wide what is the moment of inertia of the door about its hinges. The equation for moment of inertia about the hinges is I =1/3 mr^2 should i use the the width or the height as my r i think it should be ...
*April 19, 2009 by seth*

**physics!!!!!!!**

In order to measure the length of a long flourescent ceiling lamp, a student makes a very small hole in a piece of paper, holds the paper above the floor, measures the distance between the hole and the floor, and finally measures the length of the light's image on the floor. ...
*February 12, 2013 by please help me out!!! please*

**physics!**

In order to measure the length of a long flourescent ceiling lamp, a student makes a very small hole in a piece of paper, holds the paper above the floor, measures the distance between the hole and the floor, and finally measures the length of the light's image on the floor. ...
*February 14, 2013 by please help me out!!!!*

**Physics**

In order to measure the length of a long flourescent ceiling lamp, a student makes a very small hole in a piece of paper, holds the paper above the floor, measures the distance between the hole and the floor, and finally measures the length of the light's image on the floor. ...
*February 16, 2013 by Tony*

**PHYSICS**

In order to measure the length of a long flourescent ceiling lamp, a student makes a very small hole in a piece of paper, holds the paper above the floor, measures the distance between the hole and the floor, and finally measures the length of the light's image on the floor. ...
*October 14, 2013 by steve*

**Geometry**

Right triangle ABC has one leg of length 12 in and a hypotenuse of length 13 inch. A) Determine the length of the other leg B) Determine the perimeter of the triangle. C)Determine the area of the triangle. Must show work as well as answers for each of the above.
*February 20, 2014 by Boo*

**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**

1.The length of one of the equal legs of an isosceles triangle is 8 cm less than 4 times the length of the base. If the perimeter is 29 cm, find the length of one of the equal legs. A) 4 cm B) 5 cm C) 11 cm D) 12 cm answers 4x-8= 4(5)-8= 20-8= 12 2.3x - 2y = 6 answer X=4 and Y...
*December 7, 2007 by mary*

**Physics**

Tyler runs the length of a soccer field (100m). A. How much time is required for him to run the full length at speed v? B. If he runs at 6.0 m/s how long does it take tyler to run the length of the field?
*September 11, 2011 by AZ*

**Algebra**

1. The sum of the ages of James and Remy 5 years ago was 44. Twenty-two years from now, James' age will be 52 less than twice3 Remy's age then. Find their present ages. 2. Two numbers have a sum of 41. Their difference is 5. What are the numbers? 3. The perimeter of a football...
*January 4, 2014 by McKenna Louise*

**Calculus**

A pendulum swings through an arc length of 1120 cm (Swing #1). With each further swing, the arc length is reduced by 15 % State the growth factor. Calculate the length of the arc in swing #5 I think im supposed to use this formula again, but I dont know how to use it. Tn = ar^n-1
*September 21, 2011 by Anonymous*

**math**

The length of a side of a square is fifteen less than four times the length of a side of a second square. The perimeter of the two squares differ by 24 inches. Find in inches, the length of a side of the smaller square. [ Only an algebraic solution will be accepted ]
*July 27, 2013 by vincent*

**pre algabra**

mark is making a scale drawing of his house.the width of his house is 40 feet.marks room is 10 feet wide by 17 and a half feet long in mark first drawing the width of his house (40feet) is represented by 8 inches what would the dimensions of his room in inches be on the drawing?
*March 12, 2012 by Anonymous*

**Math**

The maximum weight M that can be supported by a beam is jointly proportional to its width w and the square of its height h, and inversely proportional to its length L. a. Write an equation that expresses this prportionality b. Determine the constant of proportionality if a ...
*March 20, 2010 by Jennifer*

**algebra**

a and b are both the lengths of the legs of a right triangle, c is the length of the hypotenuse. Find the missing length if b=24 and c=25. I don't know how to do this.
*December 4, 2007 by Tabby*

**algebra**

Find the length of the hypotenuse of an isosceles right triangle whose legs are 1 unit in length.
*January 4, 2010 by yelena*

**math **

the perimeter of a triangle is 195mm if the length of the sides are consecutive odd integers. what is the length of each side?
*April 19, 2010 by patricia *

**Help: geometry**

The length of the longer leg of a 30°– 60°– 90° triangle with hypotenuse length 4 is _____ I do not understand how to figure this out.
*May 13, 2010 by BWB*

**math**

x^2 + y^2 - 8x -2y -3 = 0 the points S and T lie on the circumference of the circle. M is the midpoint of the chord ST. Length of Centre C to M is 2. whats the length of ST??
*February 13, 2011 by Jack*

**maths**

Three points A,B and C have coordinates (1,0),(4,4) and (13,5) respectively. 1.By how many units does the length of AC exceed the length of AB 2.What is the slope of BC
*November 27, 2011 by ceasar*

**calculus**

A force of 1300 lb compresses a spring from its natural length of 16 in to a length of 10 in. How much work is done in compressing it from 10 in to 6 in?
*November 28, 2011 by seth *

**geometry**

the ratio of a length on a scale drawing or model to the corresponding length on the real object....is called what?
*April 11, 2012 by Sage*

**math**

the arc length and central angle of a circle are 10cm and 80degrees respectivly. what is the length of the radius?
*May 12, 2012 by celina*

**physics**

The third resonant length of a closed air column is 75cm . What is the first and second length
*June 5, 2012 by Melissa*

**algebra**

In a simple kite the length of the longer stick, should be 1.5 times the length of the shorter stick, find the length of the shorter stick for the kite. Shown at the right.36’
*October 26, 2012 by Anonymous*

**algebra**

a load of 8 kg attached to the bottom of a coil spring stretches the spring to a length of 76 cm and a load of 14 kg stretches it to a length of 85cm. find the natural(unstretched)length of the spring
*October 6, 2014 by Anonymous*

**math**

the parameter of a rectangular placemat is 72 in. the length is 4 in. find the with and the length
*May 12, 2010 by anna*

**geometry**

What is the length of an equilateral triangle whose altitude has a length of 21
*February 23, 2011 by Anonymous*

**math**

What us the total length of the small rectangle? The length of it us 17inches
*May 25, 2011 by wendy*

**geometry**

Given AB=8 and BE is four times the length of AB, find the length of AE
*June 22, 2011 by Anonymous*