Saturday

April 25, 2015

April 25, 2015

Number of results: 42,941

**physics PLEASE HELP**

Two wires have the same cross-sectional area and are joined end to end to form a single wire. The first wire has a temperature coefficient of resistivity of α1 =0.00480 (C°)-1 and a resistivity of 4.90 x 10-5Ω m. For the second, the temperature coefficient is α2...
*January 22, 2013 by adam h.*

**math**

the portuguese national flag is a rectangle in the center of the flag is a coat of arms and shield on a circle.this circle has a diameter that is half the flags height.if the flags circle has an area of 3.14 square feet,what is the height of the flag?
*September 7, 2011 by adam*

**Math**

Basil the bumbling magician has done it again. Instead of pulling a rabbit out of a hat he pulled out rather smelly, ill tempered warthog. For now, he is keeping " Princess" in a cage with a volume of 27 cubic meters. If the sides are in whole meters only and the width is 3 ...
*August 11, 2011 by Cortez*

**math**

a rectangular mosaic is made up of exactly 12 square tiles that have an area of 9 square inches each. If the width of the mosaic is 9 inches, what is the perimeter of the mosaic in inches
*September 10, 2013 by jeremy*

**Math**

A rose garden is designed by joining a rectangle and a semicircle, as shown below. The rectangle is 29ft long and 17ft wide. If the gardener wants to build a fence around the garden, how many feet of fence are required? (Use the value 3.14 for pi, and do not round your answer...
*April 18, 2013 by Samantha*

**PHYSICS!!!**

if the same ball rolls down from three different length trackways with a 20degrees elevation, its acceleration on the short-length trackway is 1.08m/s^2;its acceleration on the medium-length trackway is 1.79m/s^2;and its acceleration on the long-length trackway is 1.52m/s^2. ...
*November 1, 2006 by Katrina*

**Math**

The areas of the faces of a rectangle box are 48 m2, 96 m2, and 288 m2. A second box is cubical and each of its faces has area 16m2. Find the ratio of the volume of the first box to the volume of the second box.
*January 17, 2010 by Michelle*

**Pre-Calculus**

A window has the shape of a square surmounted by an isosceles triangle. The sides of the square are length x. The The perimeter of the window is 90 inches. Thus, the perimeter of the triangle is x+2y. So, 90 inches = 3x+2y. (a) Write an equation for the area of the window in ...
*January 23, 2011 by SpencerCH*

**Math**

How do you find a missing length in a triangle? I have two triangles. The lengths given are 18:27:x and the other one is 14:21:28.
*October 17, 2009 by Anonymous*

**physics**

a pendulum of length L=9.8m hangs in equilibrium and is given velocoity v=0.2m/s at its lowest point.What is the magnitude of the subsequent oscillation?
*September 19, 2010 by kabelo*

**physics **

a pendulum of length L=9.8m hangs in equilibrium and is then given velocity v=0.2m/s at its lowest point.What is the magnitude of the subsequent oscillation?
*September 20, 2010 by kabelo*

**geometry**

Given that circle A has a radius of 52 and a radii AB and AC form an angle of 132 degrees, find the exact length of BC
*May 2, 2011 by Lauren*

**Trigonometry**

Given that circle A has a radius of 52 and a radii AB and AC form an angle of 132 degrees, find the exact length of BC
*May 2, 2011 by Anonymous*

**Geometry**

Determine the length of an arc with the given central angle measure, m<w=20;r=1 and round the answer to the nearest hundredth.
*May 11, 2011 by Jarret*

**geometry**

ABC is a triangle with AC=139 and BC=178. Points D and E are the midpoints of BC and ACrespectively. Given that AD and BE are perpendicular to each other, what is the length of AB?
*June 24, 2013 by stranger*

**math**

ABC is a triangle with AC=139 and BC=178. Points D and E are the midpoints of BC and AC respectively. Given that AD and BE are perpendicular to each other, what is the length of AB?
*June 25, 2013 by anonymous*

**Computer science**

Write a function in Python: Given a list of words, indicate whetehr the list constitutes a "Word Ladder." A Word Ladder is a series of words where each succesding word changes by only one letter. You may assume that all words will be of the same length, but you may not assume ...
*May 28, 2010 by Victoria*

**math cont'd**

how would you solve this equation? the measurement of a triangle is 2m more than the base. The area is 17.5m^2. Find the length of the base.
*July 13, 2008 by Hannie*

**Algebra**

If the sides of a square lengthened by 7cm,the area becomes 196cmsquare. What is the length of the orinal side of the original square?
*May 13, 2008 by Jack*

**geometry**

The sides of a quadrilateral are 3, 4, 5, and 6. Find the length of the shortest side of a similar quadrilateral whose area is 9 times as great.
*September 29, 2010 by callie*

**algebra**

If the sides of a square are lengthend by 7cm, the area becomes 121cm^2. Find the length of a side of the orginal square.
*October 23, 2010 by Shane*

**Math**

If the sides of a square are lengthened by 7cm, the area becomes 121cm2. Find the length of a side of the original square.
*October 31, 2010 by Justin*

**college geometry**

In a triangle the ratio of the base to its altitude is 2:3. If the area of the trianlge is 108 square units, what is the length of the base?
*December 12, 2010 by Kathy*

**Geometry**

Find the surface area of a right octagonal pyramid with height 2.5 yards, and its base has apothem length 1.5 yards.
*December 30, 2010 by Bob*

**Math**

Find the surface area of a right octagonal pyramid with height 2.5 yards, and its base has apothem length 1.5 yards.
*June 1, 2011 by Jessica*

**math**

The perimeter of an isosceles triangle is 16 in. The area of the triangle is 12 sq in. If the base is x in, the height is 4 in and the legs are y in, find the length of the three sides.
*January 5, 2012 by Beatrice*

**Algebra**

If the side of a square are lengthened by 7cm, the area becomes 225cm^2. Please help me find the length of the original side! Thank you
*May 5, 2012 by Bailey*

**geometry**

The sides of a quadrilateral are 3, 4, 5, and 6. Find the length of the shortest side of a similar quadrilateral whose area is 9 times as great.
*August 17, 2012 by nolan*

**geometry**

Γ is a circle with radius 10 and center O. A and B are points on Γ such that the arc length ABˆ=13. What is the area of sector AOB?
*May 7, 2013 by girija prasad lenka*

**geometry**

If the area and perimeter of a right triangle are 30 cm2 and 30 cm, respectively, what is the length of the hypotenuse (the side opposite the right angle)?
*July 14, 2013 by amin*

**Math (Geometry)**

Find the length of the third side of a triangle if the area of the triangle is 18 and two of its sides have lengths of 5 and 10.
*September 20, 2013 by Joy*

**Geometry**

The sides of a quadrilateral are 3, 4, 5, and 6. Find the length of the shortest side of a similar quadrilateral whose area is 9 times as great. A. 9 B. 13.5 C. 27
*January 23, 2014 by Cody*

**Geometry: Area and Volume Math **

What is the volume of a cube shaped box with edges 6 cm. in length? A. 1,296 cu. cm. B. 36 cu. cm. C. 18 cu. cm. D. 216 cu. cm. please help
*August 13, 2014 by Michael*

**calculus *improper integrals***

A hole of a radius of 1cm is pierced in a sphere of a 4cm radius. Calculate the volume of the remaining sphere. I know that the volume of a sphere with an exterior radius is of: V = pie(R^2 - r^2) dH where R^2 is the exterior surface area and r^2 is the interior surface area. ...
*September 16, 2012 by John*

**Steve/Ms.Sue**

Steve can you please show me how to do this problem? What is the area of the shaded region in the given circle in terms of pi and in the simplest form? the picture shown is of a circle with a triangle from 1 oclock to 3 oclock with a 60 deg opening. the side length of the ...
*April 2, 2015 by Cassie*

**physics**

A steel rod of length 4 m is welded to the end of an aluminum rod of length 3 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 4, 2012 by sima*

**math**

you have 6 pieces of wood 2-8in,2-6in,2-4in to make a rectangle picture frame using 4 pieces of wood how many frames can you make? (rectangle frames) Would it be 2?
*November 14, 2010 by Jill*

**math**

a rectangle is 1/2 red and 1/3 blue. Also it has one green tile and one yellow tile. What would the rectangle look like? What fractional part is green? Yellow?
*February 15, 2013 by norma*

**math**

complete the table that shows the length of the chain formed when rings are liked in a staright line 1)number of rings 1 length of chain 16mm 2)number of rings 2 length of chain 30m 3)number of rings 3 length of chain 44m 4)number of rings 6 length of chain ( ) 5)number of ...
*May 19, 2008 by marcus*

**6th grade math**

The area of each square is twice the area of the next smaller square drawn in it. if the area of the smallest square is 3 square cms. what is the area of the largest square
*September 9, 2009 by sai*

**algebra**

Find an expression for the area of a square with the given perimeter. 1. P= (12x+20y) in. 2. P= (36a-16b) cm.
*March 12, 2008 by Jeannine*

**math**

Find the area between each curve and the x axis for the given interval. y=16x-x^3 from x = 0 to x = 4 Thanks ahead of time.
*May 14, 2008 by Jake*

**differential geometry**

given a circle in S^2 with radius p in the spherical metric, show its area is 2pi(1-cos p)
*May 4, 2009 by bert*

**math**

Find the area of an equilateral triangle (regular 3-gon) with the given measurement. 9-inch perimeter A = sq. in.
*January 28, 2011 by ben*

**math**

Find the area of an equilateral triangle (regular 3-gon) with the given measurement. 6-inch side. A = sq. in.
*February 1, 2011 by ben*

**math**

Find the exact area of a circle having the given circumference What formual would i use for that?
*February 17, 2011 by danny*

**Pre Calculus**

Given Triange ABC with an area of 100.2 a = 32.5 c = 29.2 Find angle B, expressed in degrees.
*March 28, 2011 by Brent*

**trig**

given a central angle of 66 degrees find the area of a sector in a circle of radius 12.1 inches
*April 25, 2011 by Devann*

**Algebra**

Plot and connect the given points in order and determine the area of the resulting figure. (-4,2),(-2,2),(-2,4),(1,4),(1,3),(3,3),(3,-4),(-4,-4) A. 25 B. 30 C. 50 D. 62 E. 100
*July 19, 2011 by Deja*

**math**

2) In the given figure, AB || CD and 4DC = AB. If the area of ABCD is 75 cm², find the sum of the areas of the shaded regions.
*September 7, 2011 by Anonymous*

**trigonometry**

Determine the area of triangle ABC, given the following information c = 40m b = 20m A = 48deg
*October 21, 2012 by joe*

**math**

The surface area of this rectangular prism is 256 square millimeters. What is the value of l? the given numbers are h=4 w=8
*April 10, 2014 by tristan*

**math**

The given curve is rotated about the y-axis. Find the area of the resulting surface. y = 3 − x2, 0 ¡Ü x ¡Ü 4
*July 8, 2014 by hannah*

**Calculus**

Write the definite integral for the area of the region lying in the upper half of the ellipse given by 4x^2+y^2=4
*February 9, 2015 by Anonymous*

**physics**

A flat screen is located 0.43 m away from a single slit. Light with a wavelength of 530 nm (in vacuum) shines through the slit and produces a diffraction pattern. The width of the central bright fringe on the screen is 0.058 m. What is the width of the slit?
*March 31, 2013 by please help *

**Math-Algebra 1**

The bed of a truck holds 1920 cubical boxes that are 1 foot on each side. If the height of the truck bed is 10 feet, which is a possible combination for the length & width of the truck bed? Answers: a.) 20feet, 9feet b.) 18feet, 12feet c.) 24feet, 8feet c.) 16feet, 16feet
*May 2, 2012 by Taylor Leigh*

**biology**

What connections can you identify between the metric units for length and volume length x length x length = cubic length. That is cm x cm x cm = cubic centimeters or m x m x m = cubic meters. That is length used to measure the sides will provide a volume. That is why volume ...
*September 25, 2006 by wow*

**Geometry**

How does the volume of a rectangular prism change if the width is reduced to 1/10 of its original size, the height is reduced to 1/4 of its original size, and the length is reduced to 2/3 of its original size? A. V=1/120lwh B. V=1/60lwh C. V= 2/3lwh D. V=3/4lwh
*February 17, 2014 by anon*

**Physics **

We think of the width of the central maxima on our screen as a measure of the uncertainty in the direction of travel of the protons. What happens to this uncertainty in the direction of travel (momentum) as the slit width narrows?
*April 15, 2015 by Anonymous*

**Algebra - Math**

A farmer has 100 yards of fencing with which to enclose two adjacent rectangular pens - both bordering a river. The farmer does not need to fence the side with the river. What should the dimensions of the two pens Together (rectangle shape) be in order to yield the largest ...
*July 16, 2011 by Adams*

**Math**

The length of one leg of a right triangle is 8ft. The length of the hypothenuse is 2feet longer than the other leg. Find the length of the hypothenuse and the other leg. The length of the hypothenuse is _______ ft. The length of the other leg is ___________ft.
*February 20, 2014 by Pam*

**Math**

Could someone please help me? calculate the volume in cu. ft of a section of drainage pipe that measures 8 feet in lenght and 24 inches in diameter (all measurements has to be in the same units and be careful that you distinguish between diameter and area when using this ...
*February 22, 2007 by Bridget*

**Math Help**

The length of an object in feet is equal to 3 times its length in yards. The length of a waterslide is 48 feet. Write and solve a multiplication equation to find the length of the waterslide in yards.
*January 30, 2012 by Anna*

**college - physics**

was wondering if someone can help me out. Question: a jet has a length of 59.7 meters. The runway on which the plane lands intersects another runway. The width of the intersection is 25m. the plane decelerates thru the intersection at a rate of 5.70 m/s^2 and clears it with a ...
*October 5, 2008 by ksunhsine*

**Physics**

Suppose you wish to make a solenoid whose self-inductance is 1.2 mH. The inductor is to have a cross-sectional area of 1.2 10-3 m2 and a length of 0.048 m. How many turns of wire are needed?
*October 4, 2007 by Mary*

**physics**

Suppose you wish to make a solenoid whose self-inductance is 3.0 mH. The inductor is to have a cross-sectional area of 2.0*10^-3 m2 and a length of 0.052 m. How many turns of wire are needed?
*February 16, 2008 by rick*

**Math**

A trapezoid is formed by placing a right isosceles triangle next to a square as shown in the figure. The total area is 54 ft2. Find the length of the bases and the height.
*September 26, 2011 by Ashlee*

**Physics**

Suppose you wish to make a solenoid whose self-inductance is 1.6 mH. The inductor is to have a cross-sectional area of 1.3 x 10-3 m2 and a length of 0.065 m. How many turns of wire are needed?
*March 10, 2013 by Tonya*

**Algebra **

A couple wants to install a squaremirror thathas an area of 500 square inches. to the nearest tenth of an inch, what length of wood trim is needed to go around the mirror.
*August 28, 2014 by Alysa*

**Music Physics**

The clarinet's lowest note is D3, 147 Hz. What is its effective length, that is, the length of an idealized closed pipe that has this frequency for its first mode? Explain why this is less than the actual length of the instrument?
*April 19, 2012 by AAA*

**dma 040**

area of a certain state (state1) five times the area of another state(state2). If the sum of their area is 6,000,000 square miles, find area of each state
*September 14, 2013 by Anonymous*

**Geometry**

A kite has an area of 32. One diagonal is 4 times the other one. The endpoints of one of the diagonals (one of the vertices of the kite) is (3,6). Find other three possibilites for the other three vertices of the kite. Can someone help me with this problem? I can tell you what...
*June 13, 2006 by Anonymous*

**Math Ratios**

If a TV screen with an aspect ration of 16:9 measures 48cm diagonally, what are the height and width measurments of the screen? The aspect ratio width to diagonal is 16: (sqrt(16^2+ 9^2)) 16:18 so.. 16/18= w/48 and for height 9/18=h/48
*October 16, 2006 by Jessie*

**pre calc**

at a single ticket booth, customers arrive randomly at a rate of x per hour. the average line length is given by F(x)= x^2/400-20x Where 0<= x <20. To keep the wait in line reasonable, it is required that the average line length should not exceed 10 customers. Determine ...
*November 25, 2014 by wally*

**Pre-Algebra-math**

Mr.jones bought 20 yards of fencing to make pen for dog pen will be in rectangle shape, the fencing comes in 1 yard section, wants the MAXIMUM areafor his dog to run, what dimension will give the pen the biggest space for dog to run?? then what r the dimensions for the maximum...
*September 25, 2012 by Kim*

**Precalculus**

Abey Numkena is an interior designer. She has been asked to locate an oriental rug for the new corporate office. As a rule, the rug should cover 1/2 of the total floor area with a uniform width surrounding the rug. a) If the dimensions of the room are 12 ft by 16 ft, write an ...
*October 1, 2014 by Anonymous*

**math**

Please show all of your work in the space below. Please present and organized and complete solution. A garden will be made up of a parallelogram, a rectangle and a triangle. The garden must have an area of 500m square. Draw two possible gardens. Determine the dimensions of ...
*November 22, 2013 by jhon*

**Math**

The dissipation of heat through a composite material of width w centimetres can be modelled by the function f(w)=10/w-0.77ln(w)–3.2 You are required to find the width of material that will prevent any heat dissipation. State what equation you will need to solve?
*February 14, 2015 by Sam*

**Calculus**

If the volume of a cube is increasing at 24 in^3/min and the surface area of the cube is increasing at 12 in^2/min, what is the length of each edge of the cube? I know that dV/dt=24 and ds/ds=12. I also know that Volume=s^3 and Surface Area=6*s^2, but what do I do from there?
*December 7, 2010 by Anna*

**calculus help lttle question**

find the area of the regin bounded by the graphs of y=-x^2=2x=3 and y=3. i don't need help solving the problem and but i am a little confused. ok the graph is a parabola and i drew a parobla with y= 3. now when find the area, am I finding the area on the top, above y=3 or on ...
*January 8, 2007 by david*

**Math**

A rug is to fit in a room so that a border of consistent width is left on all four sides. If the room is 9 feet by 19 feet and the area of the rug is 24 square feet, how wide will the border be?
*October 22, 2010 by Ford*

**How to find the enlarged area- Geometry**

Reposting.. The original area is 10 inch^2. If the area is enlarged by 120%, what is the new area? Please help. Thanks. Ten multiplied by 1.20 No, the answer is 14.4 Nope! bobpursley is right, a 120% increase of 10 inches^2 is 12 inches^2 Perhaps you stated the question ...
*April 13, 2007 by Jen*

**Algebra 1**

If the sides of a square are lengthened by 8cm, the area becomes 289cm^2. Find the length of a side of the original square. I do not know how to do this please help me.
*July 3, 2008 by Cynthia*

**calculus**

show that the area(A) of an isosceles triangle, whose equal sides are of length s and angle between them is theta, is A=1/2s^2sin theta
*November 16, 2008 by meeh*

**4th grade**

What is the perimeter of a dog huse in the shape of a regular pentagon if the perimeter is 35 feet,what is the length of each side of the play area?
*April 5, 2010 by delacia williams*

**College Algebra**

If the sides of a square are lenthened by 7 cm, the area becomes 222 cm squared. Find the length of a side of the original square.
*August 12, 2010 by Jacqueline*

**Math**

Suppose that the area of a square is forty-one times its perimeter. Find the length of a side of the square. All I can think of is that P=4s and A=s^2 thanks for any help
*September 10, 2010 by Mark G*

**geometry**

The perimeter of an isosceles triangle is 42 cm . its base is 2/3 times the sum of the equal sides . find the length of each side and the area of the triangle.
*December 30, 2010 by saurav kumar*

**MATH**

A regular triangular pyramid has an altitude of 9m and a volume of 46.8cu. meters. Find the length of the edges and the lateral area of the pyramid.
*February 19, 2012 by kitOy*

**Geometry**

Right triangle ABC has an area of 32^3 cm^2. The measure of <A=30, and the measure of <B=90. What is the length of BC, AB, and AC? Express all answers in simplest radical form.
*April 10, 2012 by Cassie*

**geometry 2**

circle K has an area of 64 pi units ^2. Find the exact length of the arc intercepted by a 210 degree central angle in circle K.
*April 10, 2012 by Kate Jenson*

**maths -circle**

A chord of length 10 cm divides a circle of radius 5root2 cm in two segments. find the area of minor segment.
*March 4, 2013 by anchal*

**Geometry**

Arc DE has a length of ð(pie), and the straight line distance between points D and E is equal to the radius of the circle. What is the area of the circle?
*September 17, 2013 by Anonymous*

**Math**

A triangle lot is 170 ft on one side and has a property line of length of 800 ft. Find the area of the lot in acres
*November 12, 2013 by Argosy*

**Math**

Maria has 24ft of fence.she wants to make the lalgest rectangular area possible for her dog.what length should she make each side
*November 12, 2014 by Jessica*

**math**

An arc AB of length 5cm is marked an a circle of radius 3cm. Find the area of the sector bounded by this arc and the radii from A and B.
*March 15, 2015 by michelle*

**math**

a rectangular prism has a width of 92ft. and a volume of 240ft^3. Find the volume of a similar prism with a width of 23ft. Round to the nearest tenth if necessary. a)3.8ft^3 b)60ft.^3 c)15ft.^3 d)10.4ft.^3 I am totally cinfused by this. Can somebody please help me? I would ...
*August 30, 2008 by Shannon*

**algebra**

Diagonal brace. The width of a rectangular gate is 2 meters (m) larger than its height. The diagonal brace measures square root of 6. Find the width and height.
*August 24, 2010 by Simone*

**Geometry Ratios**

At the half time show during a football game, a marching band is to form a rectangle 50yards by 16yards. The conductor wants to plan out the band members positions using a 14- by 8.5-in. sheet of paper. What scale should she use to fir both dimensions of the rectangle on the ...
*March 13, 2012 by A*

**Maths**

A)Sam jogs 6 laps around a circular running track which has a radius of 30 meters. How far does she jog in total? B)Tom and Jerry decide to find the perimeter of their garden. Tom measures the length as 5.2meters while Jerry measures the width as 37cm. ehat is the perimeter?
*February 24, 2011 by Anonymous*