Wednesday

September 17, 2014

September 17, 2014

Number of results: 12,096

**geometry**

The legs of an isosceles triangle have lengths 2x+4 and x+8 . The base has length 5x-2 . What is the length of the base?
*January 13, 2011 by edtyyyd*

**math**

The length of the sides of a triangle are 6,14,and 10.If the shortest side of a similar triangle has length,then its perimeter is?
*January 28, 2011 by lindsey*

**geometry**

how many cubes with a side length 5cm do fit in a cube with a side length 20cm?
*April 18, 2011 by ....*

**Geometry**

What is the area of a regular pentagon with a side length of 9.4 feet and an apothem length of 6.5 feet?
*November 7, 2011 by Louisa*

**math**

an equilateral triangle has an altitude length of 36 feet. determine the length of a side of the triangle
*December 13, 2011 by anonymous*

**Maths **

if the ratio of the length to the breadth of a rectangle be 5:3 and its perimeter is 144m, find the length of the rectangle .
*February 4, 2012 by san *

**algerbra**

the perimeter rectangular pool is 160 meterss . The length of the pool is 20 meters . what is the length ?
*November 30, 2012 by Anonymous*

**MAth**

A model length of 12 cm. represents an actual length of 102 feet. What is the scale model?
*February 8, 2013 by James*

**Geomotrey**

What is the area of a regular pentagon with a side length of 9.4 feet and an apothem length of 6.5 feet?
*August 6, 2014 by orlando*

**math**

Whats the difference between an arc [of a circle]'s length and measure? And how do you find each of them? The "measure" of an arc is the angle that it subtends from the center of the circle. Call that angle A. The length of the arc is 2 pi R * [A/(2 pi)] = R*A, if A is in ...
*March 20, 2007 by Emily*

**Math! Please Help!**

1. What is the simplified form of (–3x^3y^2)(5xy^–1)? I think it is 15x^4y 2. What is the simplified form of –9m^–2n^5 × 2m^–3n^–6? I have no idea on this one. :/ 3. A rectangular pasture has a fence around the perimeter. The length of the fence is 16x^7 and the width is 48x^4...
*January 15, 2014 by Electro*

**physics**

A metal rod has a length of 4m at 50 degrees celcius and a length of 6m at 200 degrees celcius. What is it's length at 20 degrees celcius?
*November 24, 2011 by Afrah*

**Physics**

Monochromatic light of an unknown wavelength passes through a single slit of width 5.59 Î¼m and forms an interference pattern on a screen 1.26 m away.Â The width of the central bright fringe of the interference pattern is 18.8 cm.Â The same light is then shone on potassium, ...
*December 3, 2012 by Alphonse*

**Math**

The area of field in the shape of trapezium is 217msq. If its altitude is 14m nd the length of one of its bases is 18m,find the length of its other base. Gve me ful sltn plz nd ans is13m
*September 15, 2012 by Simran kaur*

**math,help**

can someone set this up for me as an equation so i can solve it. thanks A garden area is 30ft long and 20ft wide. A path of uniform width is set around the edge. If the remaining garden area is 400ft^2, what is the width of the path. see the frame question. if you dont mind i ...
*January 28, 2007 by Jasmine20*

**math**

a piece of cardboard is twice as it is wide. It is to be made into a box with an open top by cutting 2-in squares from each corner and folding up the sides. Let x represent the width (in inches) of the original piece of cardboard. a.Represent the length of the original piece ...
*February 15, 2011 by Amy*

**physics**

The type of rubber band used inside some baseballs and golf balls obeys Hooke's law over a wide range of elongation of the band. A segment of this material has an unstretched length l = 1.50 m and a mass m = 5.6 g. When a force F = 17 N is applied, the band stretches an ...
*December 25, 2010 by nadre*

**Trig**

Its a 30-60-90 triangle there's a line in the center that= 10 a. What is the length of the hypotenuse of triangle ABC? b. What is the length of the shorter leg of triangle ABC? c. What is the length of the longer leg of triangle ABC?
*February 1, 2012 by BreAnne*

**physics**

A steel rod of length 1 m is welded to the end of an aluminum rod of length 2 m (lengths measured at 23 °C). The combination rod is then heated to 198 °C. What is the length of the combination rod at 198 °C? (The linear expansion coefficients for steel and aluminum are 1.3 10-...
*April 6, 2012 by Anonymous*

**math (8th grade)**

The length of each piece in a model train railroad built on the HO scale is 1/87 of the actual length. Another popular model is the N scale, for which the scale is 1/160. Each car on a full-size passenger train is 80ft long. What is the length in inches of a model passenger ...
*February 10, 2011 by megan*

**geometry**

The figure shows some of the steps Jane took to draw a line segment parallel to line segment XY at R. Jane plans to perform these steps next. Step 1. Set the compass at point S and adjust its width to point T Step 2. Fix the compass at point L. Step 3. Using the same width, ...
*September 24, 2011 by Anonymous*

**math **

there is no width
*April 16, 2012 by Cora*

**Math**

The length (in centimeters) of a typical Pacific halibut t years old is approximately f(t) = 190(1 − 0.955e−0.25t). How fast is the length of a typical 9-year-old Pacific halibut increasing? ? cm/yr (c) What is the maximum length a typical Pacific halibut can ...
*April 5, 2014 by Vanessa*

**Math**

The length (in centimeters) of a typical Pacific halibut t years old is approximately f(t) = 190(1 − 0.955e−0.25t). (b) How fast is the length of a typical 9-year-old Pacific halibut increasing? cm/yr (c) What is the maximum length a typical Pacific halibut can ...
*April 7, 2014 by Vanessa*

**physics**

A length of organ pipe is closed at one end. If the speed of sound is 344 m/s, what length of pipe is needed to obtain a fundamental frequency of 74 Hz? Answer in units of m.
*April 1, 2010 by Aaron*

**Calculus**

A spring has a natural length of 24 cm. If a 27-N force is required to keep it stretched to a length of 30 cm, how much work W is required to stretch it from 24 cm to 27 cm? (Round your answer to two decimal places.)
*December 4, 2011 by Courtney*

**geometry**

Find the length of a rectangle if its diagonal is 34 cm long and the angle the diagonal makes with the length is 27° 50'. (answer correct to the nearest centimetr) Thank you so much Could you be so nice and explain me ho I will count 27° 50'?
*May 25, 2012 by Lucas*

**Geometry **

In the diagram below, the length of the legs AC and BC of right triangle ABC are 6 cm and 8 cm, respectively. Altitude CD is drawn to the hypotenuse of △ABC. What is the length of AD to the nearest tenth of a centimeter?
*June 18, 2012 by Alma*

**Math**

Mark has a 40 foot length of rope he decides tocut it into two pieces. He wants one length four times as long as the other. How long is each piece?
*October 9, 2012 by Anonymous*

**physics**

at birth,baby jordaan weighed 3kg and his length was measured to 0.40m.after a few months,baby's mass doubled.determine the new length
*February 14, 2013 by Anonymous*

**math**

Break a stick of length 1 at a uniform location and then choose either of the two parts with equal probabilities. If X denotes the length of the part you choose, compute E[X] and var(X).
*May 3, 2013 by hsuan*

**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*

**Agent HELP! Trigonometry**

An isosceles triangle ABC has two sides 17cm in length and a base 10cm in length. Find the size of the angle between the equal sides.
*March 5, 2014 by Jnr John*

**AP Calc B/C**

Find the arc length of one arch of the sine curve. I started it by doing y=sinx, y'=cosx arc length= integral of sqrt(1+cos^2x)dx from pi/2 to 3pi/2 but I don't know how to integrate that! Thank you!
*September 13, 2014 by Anon*

**Math**

I need help and I forgot my book and class please help me solve theses Sr = SQUARE ROOT 1. What is the solution to -75 sr to the nearest integer? (1 point) 9 8 -8 -9 2. Shelly sews a blanket that has an area of 170 square feet. It has 30 square blocks, each the same size. What...
*November 7, 2012 by Kaylee*

**Pre-Algebra**

A movie projector is 6 ft away from the screen showing a rectangular picture that is 3 ft wide and 2 ft high. A. Suppose the projector is moved to 12 ft from the screen. What size will the picture be (width, height, and area)? I figured 6 wide, 4 high, 24 area. Is this correct...
*October 26, 2011 by Colton*

**physics**

How can I calculate the spring constant given only the following: equilibrium length of spring: 10.5 cm stretched length of spring (by attaching a mass): 12.5 cm object's mass: 198.9 grams -please help me...I'm really lost... You need to assume that the measurement was made at...
*August 18, 2007 by :kkk:*

**Algebra**

Kate cut a 100-foot rope into two pieces. One piece was 5 feet longer than 4 times the length of the other. Find the length of each piece.
*August 26, 2010 by Jacob*

**Algebra 2**

The hypotenuse of a right triangle is 25m long. The length of one leg is 10m less than twice the other. Find the length of each leg. Can you tell me how to set this up? I can do the math from there.
*September 16, 2010 by Jessica*

**physics**

To protect her new two-wheeler, Iroda Bike buys a length of chain. She finds that its linear density is 0.61 lb/ft. If she wants to keep its weight below 1.8 lb, what length of chain is she allowed?
*May 28, 2012 by dell*

**math**

A chemical distillation tower, 110 m high is supported by cables of length L that reach from the top of the column to the ground at a distance D from the base of the tower. If D is 1/3 the length of a cable, find L and D.
*September 13, 2012 by david*

**Math **

Suppose an isosceles triangle has perimeter 10 cm. Find an expression for its area A as a function of the length of its base b (assume that the other two sides are the sides of equal length). What is the domain of A?
*September 18, 2012 by ben*

**Physics**

A length of organ pipe is closed at one end. If the speed of sound is 344 m/s, what length of pipe is needed to obtain a funda- mental frequency of 70 Hz? Answer in units of m.
*October 1, 2012 by AJ*

**Physics**

A length of organ pipe is closed at one end. If the speed of sound is 344 m/s, what length of pipe is needed to obtain a funda- mental frequency of 70 Hz? Answer in units of m.
*October 5, 2012 by AJ*

**Trigonometry**

A pendulum of length 17.6 inches swing 1 degree and 5 minutes to each side of its vertical posisition. To the nearest hundreth of an inch, what is the length of the arc through which the end of the pendulum swings?
*March 19, 2013 by Katelyn*

**algebra**

If the length and width of a rectangle are each multiplied by 3, how would the new area of the rectangle compare with the original area of the same rectangle? I'm not sure about this one-these are my choices:my choice is A but I'm not sure a. the new volume will be 1/2 as big ...
*May 15, 2011 by Mary *

**Geometry**

Use the Figure below 4a+5 2a-6 X__________________Y___________Z XZ = 20 a. What is a b. What is the length of segment XY? c. What is the length of segment YZ
*October 2, 2007 by Sam*

**science**

the length of the string is 9.984cm.What is the length of the string to the nearest tenth of a centimeter
*September 22, 2010 by raul*

**Calculus**

What does the arc length formula give for the length of the line r(t)=<t,t,t> for 0 ≤ t ≤ 1?
*February 22, 2011 by Z32*

**Geometry**

A square has diagonal length 13 m. What is the side length of the square to the nearest centimeter?
*April 10, 2012 by Cassie*

**math**

tony cut 2 ft 7 1/2 in. length from 8 in long board. what is the remaining length of the board.
*March 8, 2013 by David *

**George Carver**

If the length or the triangle is 35 and the base is 53 what is the length of the other side of the triangle.
*March 20, 2013 by Angel*

**precalculus **

Consider the ellipse 9 x^2 + 36 y^2 = 64. the length of its major axe is ? the length of its minor axe is ?
*May 4, 2013 by dylan*

**precalculus**

Consider the ellipse 9 x^2 + 36 y^2 = 64. the length of its major axe is ? the length of its minor axe is ?
*May 4, 2013 by dylan*

**Math PLZ help **

A 30°–60°–90° triangle has a hypotenuse with a length of 18. What is the length of the shorter leg of the triangle?
*February 14, 2014 by dark1*

**Geometry/Trig**

Hello, I would appreciate it if... 1. If you could give me information on finding the area of a circle inscribed in an equilateral triangle. 2. This problem: A running track is shaped like a rectangle with a semicircle on each of the shorter sides. The distance around the ...
*October 10, 2006 by Lisa*

**physics**

In a room that is 2.78 m high, a spring (unstrained length = 0.30 m) hangs from the ceiling. A board whose length is 1.94 m is attached to the free end of the spring. The board hangs straight down, so that its 1.94-m length is perpendicular to the floor. The weight of the ...
*April 17, 2011 by isabel*

**Physics**

In a room that is 2.69 m high, a spring (unstrained length = 0.28 m) hangs from the ceiling. A board whose length is 2.22 m is attached to the free end of the spring. The board hangs straight down, so that its 2.22-m length is perpendicular to the floor. The weight of the ...
*March 3, 2013 by Tim*

**math**

The length of a drawing of a tool is 3/8 of the length of the actual tool. If the length of the drawing of the tool is 6 inches, what is the length,in inches ofthe actual tool?
*April 17, 2010 by john*

**Math**

A printed page is to have a total area of 100 square inches. The top and bottom margins are to be 1 inch and the side margins to be 1.5 inches. Let l represent the total length of the page and w represent the total width of the page. a) Write an equation, using L and W, to ...
*September 27, 2011 by Math(repost)*

**math**

the perimeter of a triangle is 42 inches. three times the length of the longest side minus the length of the shortest side is 49 inches. the sum of the length of the longest side and twice the sum of both the other side lengths is 65 inches. find the side lengths
*November 4, 2013 by tee*

**physics Sound**

The 2nd harmonic of a string of length 60 cm and linear mass density 1.1 g/m has the same frequency as the 5th resonance mode of a closed pipe of length 0.8 m. Find the tension in the string.
*March 2, 2014 by Help please as soon as possible please!!!! *

**physics**

Mode spacing and gain coefficient: A Nd microchip laser has an index of refraction 1.78 and a cavity length of 3.20 mm. Mirrors of reflectivity 0.997 and 0.975 are mounted directly on the faces of the chip. The emission lineshape of the laser transition can be considered to be...
*January 1, 2013 by qweasd*

**MATHS**

Hi Just checking The area of one face of a cube is 64cm squared What it the total surface area of the cube? DO we do 64 times 6 and the answer is 384 cm cubed? Also it askes what is the volume I do 64 cubed which is 262144 cm cubed ? AM I right ? yes- the total surface area is...
*April 15, 2007 by gt*

**Algebra**

Volume of a container? A cubic shipping container had a volume of a^3 cubic meters. The height was decreased by a whole number of meters and the width was increased by a whole number of meters so that the volume of the container is now a^3+2a^2 3a cubic meters. By how many ...
*August 5, 2010 by michelle*

**Physics**

Two infinitely long slits, S1 and S2, each of width d=0.1 cm are used to prepare a box-shaped electron beam with energy E=400 eV. At what distance x from the slit S2 will the thickness of this electron beam double due to Coulomb's repulsion? The linear density of electron ...
*April 4, 2010 by Anna*

**algebra1/McDougal Littell**

a page of pictures for a yearbook is 8 1/2 inches by 11 inches. The space between the pictures is 3/16 inch. How high can each picture be to fit seven down the length of the page? since the the length of the page is 11 inches, and there has to be seven pictures down the length...
*November 16, 2006 by derrick*

**Physics**

A certain coiled wire with uneven windings has the property that to stretch it an amount s from its relaxed length requires a force that is given by , so its behavior is different from a normal spring. You suspend this device vertically, and its unstretched length is 19.0 cm. ...
*February 25, 2011 by Martha*

**lorentz contraction**

I've tried for hours to solve for v, but can't get the rearranging right. I'm using L= Lo sqrt 1- v^2/c^2 Can anyone suggest the first couple of steps? I can get the answer by the way, by substituting values 'til I get the contracted length. Original and final length are given...
*March 27, 2009 by charlie*

**Math**

Please help me with this..I am very puzzled. Josh is building a wooden box for a darkling beetle habitat. If the area of the bottom of the box is 576 cm2 and the shortest side is longer than 10 cm, what are all the possible length and width combinations? Note: Josh measures ...
*July 28, 2011 by Anonymous*

**algebra2**

A package with square ends has combined length and girth(girth is perimeter of a cross section) of 120 in. The surface area of the entire package is 3600 sq. in. Determine the dimensions of the package. s in. * s in.* l in. One solution is: 11.08in. * 11.08in. * 75.68in. Find ...
*April 26, 2012 by Chelsea:)*

**Algebra 2**

A package with square ends has combined length and girth(girth is perimeter of a cross section) of 120 in. The surface area of the entire package is 3600 sq. in. Determine the dimensions of the package. s in. * s in.* l in. One solution is: 11.08in. * 11.08in. * 75.68in. Find ...
*April 29, 2012 by Nancy*

**Algebra!**

4. A ball is thrown into the air with an initial upward velocity of 60 ft/s. Its height (h) in feet after t seconds is given by the function h = –16t² + 60t + 6. What will the height be at t = 3 seconds? (1 point) 35 feet 40 feet 42 feet 45 feet 5. Solve x² – 121 = 0 (1 point...
*March 20, 2014 by Gabby*

**Math**

A cube has all sides with a length of 7k^9n^8. The volume of a cube is found by raising the length of one side of the 3rd power. What is the final value of the coefficient when simplifying the expression? Is the answer 343?
*February 15, 2012 by Jane*

**geometry**

2. Unit 5 Lesson 12: A photographer enlarges a photo by using a scale of 6. If the length of the original photo is 7in., what is the length of the enlarged photo?
*December 8, 2011 by April*

**math**

Find an equation for the ellipse that satisfies the given conditions. Length of major axis 6, length of minor axis 4, foci on y-axis
*November 10, 2012 by monic*

**Data Management**

A kennel is to be enclosed with a 20m of fencing. The length of the kennel is to be an integer length and is to be chosen randomly. What is the expected area of the kennel?
*January 21, 2014 by Alejandro*

**math**

The base of a regular pyramid is a square whose sides have a length 8 cm. If a lateral edge of this pyramid has length 20 cm, what is the surface area of the pyramid?
*February 6, 2012 by Fustrated*

**Geometry**

The base of a regular pyramid is a hexagon whose sides have length 5 ft. If a lateral edge of this pyramid has length 9 ft, what is the surface area of the pyramid?
*February 6, 2012 by Fustrated*

**Physics**

An insulating sphere of mass m and positive charge q is attached to a spring with length h and spring constant ks and is at equilibrium as shown below: An infinitely long wire with positive linear charge density λ is placed a distance l away from the charged mass at ...
*November 8, 2013 by rickross*

**Geometry - Ms Sue **

Do I need more information to work this problem???? A box company produces two sizes of pizza boxes. The smaller box has a surface area of 260 square inches. The larger box has a length, width, and height that are twice those of the smaller box. What is the surface area of the...
*May 25, 2011 by Mary *

**Physics please HELP**

An insulating sphere of mass m and positive charge q is attached to a spring with length h and spring constant k_s and is at equilibrium. An infinitely long wire with positive linear charge density lamda is placed a distance l away from the charged mass at equilibrium as shown...
*November 9, 2013 by nisha*

**physics**

A gry is an old English measure for length, defined as 1/10 of a line, where line is another old English measure for length, defined as 1/12 inch. A common measure for length in the publishing business is a point, defined as 1/72 inch. What is an area of 0.42 gry2 in points ...
*March 23, 2014 by Ahmed*

**College Physics 121**

A spring with a spring constant k = 50N/m has an unstretched length of 20cm. Find the work required to stretch the spring to a length of 30 cm. W = J ?? any help guys?
*July 18, 2010 by Jay*

**calculus *astroid***

THe equation x^2/3 + y^2/3 = 4 describes an astroid. Determine the length of the astroid by finding the length of a portion of it,found in the first quadrant, being y = (4-x^2/3)^3/2 for 0<x<8 and multiplying that valor by 4.
*September 17, 2012 by John*

**Java Help**

I am just starting out in programming. If someone could help me with these assignments, it would be greatly appreciated. "Write a Rectangle class. This class represents Rectangles. Each Rectange has the X and Y coordinates of its center point (as doubles) and its width and ...
*May 21, 2008 by Jim*

**Algebra**

The length of the sides of a triangle are three consecutive even integers. The perimeter of the triangle is 36 in. What is the length of the longest side of the triangle?
*May 24, 2011 by Jocelyn*

**math**

a cube has an edge length of x cm write an equation for the volume v of the cube in term of x . if the length of each edge were doubled how would the volume change if the length were tripled how would volume x³ i mean the equation would be v=x³
*January 21, 2007 by margaret*

**algebra 2**

The volume of the box is represented by (x^2+5x+6)(x+5). Find the polynomial that represents the area of the bottom of the box. can some explain how to get the solution Divide the volume by the height to get the area of the bottom. You don't say what the height is. You need to...
*May 9, 2007 by carrie*

**Trig**

The lengths of segments PQ and PR are 8 inches and 5 inches, respectively, and they make a 60-degree angle at P. (a) Find the area of triangle PQR. (b) Find the length of the projection of segment PQ onto segment PR. (c) Find the length of segment QR. (d) Find the sizes of the...
*April 17, 2010 by Sarah*

**geometry**

to find the height of a tree, a student 53 inches in height measures the length of the tree's shadow and the length of his own shadow. The student casts a shadow 63 inches in length and the tree casts a shadow 67 inches in length
*March 16, 2013 by eric*

**hs geometry**

to find the height of a tree, a student 53 inches in height measures the length of the tree's shadow and the length of his own shadow. The student casts a shadow 63 inches in length and the tree casts a shadow 67 inches in length
*March 17, 2013 by joan*

**math**

a poster is 25cm taller than it is wide. it is mounted on a piece of cardboard so that there is a 5cm border on all sides. if the area of the border alone 1350cm^2, what are the dimensions of the poster? It is almost a must to draw a diagram but I can't do that on the computer...
*November 29, 2006 by jason*

**9th grade**

the perimeter of a triangle is 31 cm. sides #1 and #2 have epual length, while side #3 is one centimeter shorter than twice the length of side #1. how long is each side
*December 10, 2010 by dayday*

**math**

Alyssa is enrolled in a public-speaking class. Each week she is required to give a speech of greater length than the speech she gave the week before. The table below show the length of several of her speeches: WK #/Length of Speech (seconds) 3/150, 4/180, 5/210, 6/240 If this ...
*April 29, 2013 by Jane*

**Physics Important please**

An insulating sphere of mass m and positive charge q is attached to a spring with length h and spring constant k_s and is at equilibrium. An infinitely long wire with positive linear charge density lamda is placed a distance l away from the charged mass at equilibrium as shown...
*November 8, 2013 by nisha*

**algebra**

how do I find the width of a perimeter?
*January 17, 2010 by mike*

** Math**

What is width of a billboard that has a height of 30 ft?
*February 22, 2010 by Jared*

**math**

what is the highth of a 30 in.tv that has the width of 24 inches?
*October 28, 2011 by katy*

**hcc**

What are some objects that width is 5.50 mm
*June 15, 2013 by jey*

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