Friday

September 30, 2016
Number of results: 6,307

**Physics**

Two vectors with magnitudes of 6 meters and 8 meters cannot have a resultant of: 48 meters 14 meters 10 meters 2 meters Please explain. I do not understand how to figure this out!

*August 9, 2009 by Hannah*

**physical science**

A weight attached to a wire is swung in a circular path. Its speed is 12 meters/sec, and it has a centripetal acceleration of 9.0 meters/sec2. Calculate the diameter of the circle. 1.3 meters 2.6 meters 16 meters 32 meters

*June 27, 2011 by pat*

**Physics**

Two vectors with magnitudes of 6 meters and 8 meters cannot have a resultant of: 48 meters 14 meters 10 meters 2 meters

*August 13, 2010 by Ronnie*

**Math plz help one qustion only!!!!!!!!!!!!!!!!!!!!**

A trapezoid has an area of 24 square meters. The lengths of the bases of the trapezoid are 5 meters and 7 meters. What is the height of the trapezoid? • 4 meters************ • 144 meters • 2 meters • 1 meter

*February 4, 2016 by Marie*

**Math**

A trapezoid has an area of 24 square meters. The lengths of the bases of the trapezoid are 5 meters and 7 meters. What is the height of the trapezoid? (1 point) 4 meters•• 144 meters 2 meters 1 meter Correct this

*February 19, 2016 by Tia/Justin *

**math concepts and applications**

A rectangle has a length of 6 meters and a perimeter of 20 meters. What is the width of the rectangle? A. 4 meters B. 7 meters C. 14 meters D. 52 meters C ?

*August 15, 2012 by melissa*

**Geometry**

7. What is the surface are of a conical grain storage tank that has a height of 37 meters and a diameter of 16 meters? Round the answer to the nearest square meter. 2,831 square meters 2,664 square meters 1,152 square meters 1,131 square meters

*May 13, 2016 by Becky*

**Math**

A trapezoid has an area of 24 square meters. The lengths of the bases of the trapezoid are 5 meters and 7 meters. What is the height of the trapezoid? • 4 meters************ • 144 meters • 2 meters • 1 meter

*February 4, 2016 by Marie*

**Math**

A trapezoid has an area of 24 square meters. The lengths of the bases of the trapezoid are 5 meters and 7 meters. What is the height of the trapezoid? A. 4 meters B. 144 meters** C. 2 meters D. 1 meter

*February 29, 2016 by Esther*

**math**

find the area of prism 5 millimeters 6 meters 13 meters not drama scale A. 48 meters squared B. 346 meters squared C. 780 meters squared D. 195 meters squared help

*May 4, 2016 by Larry vandermark*

**math**

find the area of prism 5 millimeters 6 meters 13 meters not drama scale. A. 48 meters squared B. 346 meters squared C. 780 meters squared D. 195 meters squared help

*May 4, 2016 by Larry vandermark*

**math**

find the area of prism 5 millimeters 6 meters 13 meters not drama scale A. 48 meters squared B. 346 meters squared C. 780 meters squared D. 195 meters squared

*May 4, 2016 by Larry vandermark*

**Science**

Which solution will best allow the movers to achieve their goal? A) Change the width of the ramp from 4 meters to 3 meters. B) Change the length of the ramp from 4 meters to 5 meters. C) Change the height of the ramp from 3 meters to 4 meters. D) Change the length of the ramp...

*March 3, 2016 by Marc*

**Math (Ms.Sue)**

Find the circumference of a circle whose area is 452.16 square meters. (Use 3.1416 as the value of π.) A. 12 meters B. 75.3984 meters C. 24 meters D. 37.6992 meters I don't know what formula to use for this equation.

*September 15, 2015 by Brooklyn *

**physics**

A bicyclist moving at a constant speed takes 10.0 seconds to travel 500 meters down a path inclined 30.0° downward from the horizontal. What is the vertical velocity of this motion?Select one of the options below as your answer: A. 18.3 meters/second B. 43.3 meters/second C. ...

*May 25, 2012 by Anonymous*

**Geometry**

Can you check these multiple choice questions thanks. 1. What is the length of a rectangle that has an area of 20 square meters and a perimeter of 18 meters. A. 10 meters B. 2 meters C. 5 meters D. 9 meters Answer: B 2. Find the minimum perimeter of a rectangle whose area is ...

*September 5, 2009 by Missy*

**math **

victor drives 300 meters up a hill that makes an angle of 13 degrees with the horizontal. To the nearest tenth of a meter, what horizontal distance has he covered? 307.9 meters 292.3 meters 69.3 meters 67.5 meters *****im thinking C, please help*****

*March 17, 2016 by ghosttleaah*

**Earth Space Science**

the horizontal distance between a crest to the next trough of an ocean wave is 5 meters. what is the wavelength of the ocean wave? A)2 meters B)5 meters C)10 meters D)20 meters I think its 10 meters but im not so sure, I would like to make sure.

*March 28, 2015 by Sierra*

**algebra**

The formula for the height of a fallinis shown below, where h is the height of the object in meters, t is the time in seconds, and k is the height, in meters, from which the object began its fall. h=-4.9f+k If aq rock is droppped from a building that is 150 meters tall, what ...

*September 22, 2010 by curtina blue*

**Physics/Formulas**

Calculate the SI units of the constants A and B in each of the following equations. Assume that the distance x is in meters (m), the time t is in seconds (s), and the velocity v is in meters per second (m/s). a. x = A + B.t Meters = A + B * seconds b. x = ¼ A.t2 Meters = 0.25...

*August 21, 2013 by Paul*

**Trigonometry**

A painter needs to cover a triangular region 62 meters by 68 meters by 70 meters. A can of paint covers 70 square meters. How many cans will be needed?

*April 24, 2009 by Kim*

**Math**

A painter needs to cover a triangular region 61 meters by 66 meters by 72 meters. A can of paint covers 70 square meters. How many cans will be needed?

*May 3, 2009 by Sarah*

**physic**

julianna walked 45 meters east, 45 meters souuth, and 45 meters north. what is her resultant displacement? My answer was 45 meters west. is this correct

*October 17, 2009 by julien*

**math**

A painter needs to cover a triangular region 62 meters by 66 meters by 71 meters. A can of paint covers 70 square meters. How many cans will be needed?

*March 31, 2010 by pepe*

**math**

A painter needs to cover a triangular region 62 meters by 66 meters by 71 meters. A can of paint covers 70 square meters. How many cans will be needed?

*March 31, 2010 by peter*

**Health**

The long continuous tube that is the digestive tract is about ________ in length. A. 3 meters B. 9 meters C. 5 meters D. 12 meters

*August 23, 2014 by Audra*

**math**

A submarine starts at a position relative to sea level of -45 meters. The submarine then changes it's position at a rate of -6 meters per minute. What is the submarine's position after 7 minutes? A. -3 meters B. -44 meters C. -58 meters D. -87 meters

*March 13, 2014 by ★★ PLEASE HELP ★★*

**physics**

Consider a wave that travels a distance of 3 meters in 1 second with a frequency of 2 hertz. What is its amplitude? A) 4 meters.B) 2 meters.C) Not enough information is given.D) 3 meters.E) 1 meter.

*April 29, 2012 by Kristie*

**5th grade**

a parallegram has a height of 4 meters and sides of 5 meters and 7 meters. What is its area in square meters?

*November 3, 2010 by samantha*

**Math**

Earl runs 75 meters in 30 seconds. How many meters does Earl run per second? 75 meters/30 seconds= 30 seconds/75 meters= 6 seconds/15 meters= 2 seconds/5 meters He runs 5 meters in 2 seconds. Can you tell me if I got the correct answer or if I did something wrong?

*September 20, 2016 by Matt-Please Help*

**Math - PreCalc (12th Grade)**

If the distance covered by an object in time t is given by s(t) = 2t2 + 3t, where s(t) is in meters and t is in seconds, what is the average velocity over the interval from 2 seconds to 4 seconds? A) 15 meters/second B) 14 meters/second C) 13 meters/second D) 12 meters/second ...

*March 21, 2014 by Shawna*

**math**

A diver is wroking 30 meters below sea level. Another diver is taking a break on a platform directly above him that is 5 meters above sea level.How far apart are the two divers? a. 5 meters b. 25 meters c. 35 meters d. 40 meters please answer and explain

*April 23, 2014 by thomas*

**Math (1 question)**

estimate the area of a circle with a radius of 27 meters. Use 22/7 for pi. A. 258 square meters B. 1,125 square meters C. 2,291 square meters D. 5,253 square meters

*April 3, 2016 by nada*

**Math**

One box measure 7 meters by 15 meters by 8 meters. Another box measure 8 meters by 9 meters by 10 meters. by how many cubic meter is the volume of box greater than the other?

*December 12, 2014 by Karl Santos*

**physical science**

A car with a mass of 1,200 kilograms is moving around a circular curve at a uniform velocity of 20 meters per second. The centripetal force on the car is 6,000 newtons. What is the radius of the curve? A. 80 meters B. 32 meters C. 16 meters D. 160 meters

*February 5, 2008 by Anonymous*

**math**

find the area of a rectangle that is 4 meters by 8 meters. A-12 SQUARE METERS B-24 SQUARE METERS C-36 SQUARE METERS D- 32 SQUARE METERS I PUT D, IS IT RIGHT?

*April 15, 2012 by Gabby ( 5 grade)*

**math**

if there is a height of 4 meters and sides of 5 meters and 7 meters"what is the area of the square meters

*November 3, 2010 by samantha*

**Math Multiplying Fractions**

A swimming pool in the shape of a rectangular prism is 50 meters long 25 meters wide and 3 meters deep. A liter is the same as 0.001 cubic meters. How many liters of water are needed to completely fill the pool? I know how to find the volume which is 3750 but how do I convert ...

*February 4, 2014 by Jerald*

**Math **

A rectangular prism has a length of 100 cm, a height of 10 cm and a width of 5 cm. What is the volume of the rectangular prism? A. 3100 square centimeters B. 1550 square centimeters C. 5000 square centimeters D. 1200 square centimeters 2. A cylinder has a diameter of 5 meters ...

*March 7, 2012 by Adrian *

**IPC**

A hailstone traveling with a velocity of 43 meters/second comes to a virtual stop 0.28 seconds after hitting water. What is the magnitude of its acceleration in the water? a. 12 meters/second2 b. 1.5 × 102 meters/second2 c. 78.6 meters/second2 d. 6.5 × 10-3 meters/second2

*February 6, 2015 by justin*

**math**

A pool must be 25 meters long and 3 meters deep and the room is only 10 meters wide can u still build a pool that will hold 800 cubic meters of water and why

*August 31, 2015 by Kaliah Gables*

**Math**

An airplane pilot over the Pacific sights an atoll at an angle of depression of 7°. At this time, the horizontal distance from the airplane to the atoll is 3,729 meters. What is the height of the plane to the nearest meter? 458 meters 454 meters 3,667 meters 3,701 meters So I ...

*April 19, 2016 by Tim*

**physic**

julianna walked 45 meters, 45 meters south , and 45 meters north. what is her resultant displacement my answer was 45 meters west. is this answer correct

*October 17, 2009 by julien*

**ALGEBRA**

A rectangular room is 4.15 meters longer than it is wide, and its perimeter is 27.9 meters. Find the dimensions of the room. The length is :-------- meters and the width is -----meters.

*September 26, 2015 by NINA*

**Algebra **

A rectangular room is 6 6 meters longer than it is wide, and its perimeter is 28 28 meters. Find the dimension of the room. The length is : meters and the width is meters.

*January 27, 2016 by Seymour *

**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*

**physics**

If a ball is dropped from rest, it will fall 5 m during the first second. How far will it fall during the second second? A. 15 meters B. 10 meters C. 5 meters D. 20 meters the way the question is worded it seems it should be 10meteres but I think it wants total so would it be ...

*March 11, 2014 by anonymous*

**Math**

How do I do imperial to metric conversions?! Metric to imperial is easy but I don't know how to do it the other way around!!! Please help me! a) 6yd to meters b) 3mi to kilometers c) 80in to meters d) 3.8ft to meters e) 5'3" to meters (" is foot right?) f) 0.4mi to meters **...

*July 18, 2014 by Whitney R.*

**math **

Angela practices her long jump before a big track meet. At the beginning of the week ,she jumps 1.56 meters and at the end of the week she jumps 1.63 meters .How much farther did she jump at the end of the week than at the beginning of the week answers A.0.03 meters B.0.07 ...

*October 10, 2012 by destiny*

**geometry**

A prism has a right triangle as its base with a hypotenuse that measures 15 meters and legs that measure 9 meters and 12 meters. What is the surface area of this prism if the height of the prism is 11 meters?

*March 5, 2012 by Anonymous*

**Math**

A local naturalist says that a triangular area on the north side of a pond is a turtle habitat. The lengths of the sides of this area are 15 meters, 25 meters, and 36 meters. Which expression gives the measure of the angle between the sides of the habitat that measure 15 ...

*October 10, 2014 by TeeKay*

**Math**

A landowner wishes to construct a fence around a small section of her property. The fence is rectangular and is (3√5)/√7 meters wide and (2√3)/√5 meters long. What is the exact perimeter of the fence? (Recall that the perimeter is the sum of each ...

*February 11, 2014 by Brady*

**math**

Ryans mother has a fenced rectangle garden that measures 15 meters x 10 meters.one of the 10 meters sides isalong the house and doesnt have a fence.How many meters of fence border the garden ?

*February 5, 2011 by Sanyourah El-hulu*

**physics**

a person walks due east for 10 meters and the due north for 10 meters. what is the total distance? b). what is the average speed of a car that travels 30 meters in 10 seconds, then another 50 meters in 30 seconds. Thank you for answering.

*June 3, 2014 by mercy*

**math**

Erin is making a pitcher of lemonade. Her pitcher is a cylinder with a diameter of 8.6x10^-2 meters and a height of 0.44 meters. What is the approximate total amount of lemonade that will fit in her pitcher? A.2.6 x10^-3 cubic meters B.1.0x10^-3 cubic meters C.2.6x10^-2 cubic ...

*April 12, 2015 by vincent*

**physics**

An object whose height is 0.670 meters is located 2.00 meters from the face of a thin convex lens with a focal length of 0.780 meters. The image will be located ______ meters away from the lens.

*April 17, 2013 by blake*

**Physics**

Acceleration due to gravity is independent of mass, but the force is not. Determine the final velocity of the following objects and the force generated by the same objects as they are dropped from the given heights. 10 kg 2.5 meters 7 kg 5.5 meters 0.5 kg 12 meters 0.7 kg 5 ...

*April 5, 2014 by Anonymous*

**physical science 2**

It takes 6 seconds for a stone dropped from rest to the bottom of a well,what is its final speed A; 6 meters/second B: 30 meters/seconds C: 36 meters/seconds D: 60 METERS/SECONDS A is incrrect

*January 29, 2011 by ellen*

**Analytic Geometry**

A parabolic suspension bridge cable is hung between two supporting towers 120 meters apart and 35 meters above the bridge deck. The lowest point of the cable is 5 meters above the deck. Determine the lengths of the tension members 20 meters and 40 meters from the bridge center.

*May 11, 2015 by Alexis*

**Science**

Pleasant Beach is two meters above sea level at its highest point. If the ocean waves along the shore increase to a height of five meters, then the elevation of Pleasant Beach will most likely A.decrease to nearly zero meters B.increase to more than two meters C.decrease ...

*October 22, 2014 by M*

**math**

The rectangular part of her pool is 8 meters by 6 meters. The triangular part has a height of 4 meters and a base of 5 meters. what is the area of the pool cover sally will buy

*September 25, 2012 by olivia*

**Math - Dividing Radicals**

A landowner wishes to construct a fence around a small section of her property. The fence is rectangular and is (3√5)/√7 meters wide and (2√3)/√5 meters long. What is the exact perimeter of the fence? (Recall that the perimeter is the sum of each ...

*February 11, 2014 by Brady*

**math**

How much water can a swimming pool hold. It is 12 meters long , 8 meters wide and 2.5 meters deep.

*August 19, 2016 by shuta*

**Chemistry**

A box measures 8.5 meters long, 7.5 meters wide and 0.25 meters deep, calculate the volume

*October 3, 2011 by Mike*

**Physics**

A person travels 4 meters North 6 meters West and 4 meters South. what is the total displacement?

*December 18, 2011 by Sharon*

**Physics**

A person travels 4 meters North 6 meters West and 4 meters South. what is the total displacement?

*December 18, 2011 by Sharon*

**6th grade**

how many cubic meters of dirt are in a hole 6 meters long,2 meters wide, and one meter deep?

*September 10, 2008 by brandy*

**math**

The area of a triangle is 80 square meters and the base measures 20 meters. Find the number of meters in the measure of the altitude.

*July 31, 2013 by vincent*

**physical**

help the positions of two particles A and B are P1 (3,4) in meters and P2 ( -3, -4 ) meters respectively. Meters the position A with respect to B is:

*November 14, 2014 by David*

**6th grade math**

the volume of a rectangle is 576 cubic meters. The lenth is 12 meters and the width is 6 meters. What is the height of the prism?

*March 7, 2011 by bluestarr*

**physics**

A body moves 6 meters north than 8 meters east than 10 meters vertically upward. What is its resultant displacement from initial position?

*June 13, 2011 by Anant*

**Geometry**

A rectanglar school yard is 280 meters by 245 meters is to be fenced. How many meters of fencing will be required to fence it completely?

*February 13, 2013 by wayne*

**math**

any sound from one focus of an ellipse reflects off the ellipse directly back to the other focus. This property explains whispering galleries such as Statuary Hall in Washington DC. Imagine a whispering gallery in the shape of a semi-ellipse. The distance between F and F is 28...

*August 29, 2016 by laura*

**math**

an oak tree grows 500 meters north of the bottom of a rectangular park. The oak tree takes up a space of a circular area with a radius of 2.5 meters .The center of the tree is 24 meters from the left side of the park .The park is 200 meters wide and has a length of 1300 meters...

*April 8, 2013 by aspasia*

**physics**

find displacement 4 vectors (1) 40 meters @10, (2) 30 meters @ 190 and (1)50 meters @ 280

*November 6, 2014 by Anonymous*

**Geometry **

A rectangle has an area of 6 square meters. What will be the area of the rectangle if each side length is increased by a factor 5? A. 11 square meters B. 30 square meters C. 125 square meters D. 150 square meters I think the answer is B

*March 2, 2014 by anon*

**Geog-Adiabatic rates**

Given a lapse rate of 3 degrees C/1000 meters and a temp of 20 degrees C at 0 meters: A.What is the air sitting at 3,000 meters elevation?___degrees C B.If a sample of air were lifted from 0 meters to 3,000 meters elevation, what would its new temp be?_____C(Assume no ...

*March 22, 2008 by Sarah*

**Adiabatic rates(Geography)**

Given a lapse rate of 3 degrees C/1000 meters and a temp of 20 degrees C at 0 meters: A.What is the air sitting at 3,000 meters elevation?___degrees C B.If a sample of air were lifted from 0 meters to 3,000 meters elevation, what would its new temp be?_____C(Assume no ...

*March 23, 2008 by Sarah*

**Math**

What is the total surface area of the inside and outside of a container in the shape of a rectangular prism with length of 5 meters, width of 3 meters, and height of 2.2 meters?

*May 2, 2012 by Johon*

**physics**

Mike walks 100 meters north, then walks 30 meters south. After this, he walks another 10 meters north. What is the magnitude of his total displacement during this walk, in meters?

*June 23, 2011 by marquis*

**Math**

What is the perimeter in meters of a rectangle that is 13 meters long and 10 meters wide

*May 18, 2016 by Nick*

**Calculus (Help please)**

A tank has the shape of an inverted circular cone with a base radius of 5 meters and a height of 20 meters. If water is being pumped into the tank at 2 cubic meters per minute, find the rate at which the water level is rising when the water is 7 meters deep

*January 9, 2012 by Jordan*

**Math (Calculus)**

A tank has the shape of an inverted circular cone with a base radius of 5 meters and a height of 20 meters. If water is being pumped into the tank at 2 cubic meters per minute, find the rate at which the water level is rising when the water is 7 meters deep

*January 9, 2012 by Jordan*

**Math (Calculus)**

A tank has the shape of an inverted circular cone with a base radius of 5 meters and a height of 20 meters. If water is being pumped into the tank at 2 cubic meters per minute, find the rate at which the water level is rising when the water is 7 meters deep

*January 9, 2012 by Jordan*

**math**

At the ruins of Caesarea, archaeologists discovered a huge hydraulic concrete block with a volume of 945 cubic meters. The block's dimensions are x meters high by 12x - 15 meters long by 12x - 21 meters wide. What is the height of the block? I have no idea how to do this. Can ...

*October 9, 2013 by Karen*

**Algebra 2**

At the ruins of Caesarea, archaeologists discovered a huge hydraulic concrete block with a volume of 945 cubic meters. The block's dimensions are x meters high by 12x - 15 meters long by 12x - 21 meters wide. What is the height of the block? Can someone please show me how to ...

*October 9, 2013 by Krystal*

**physics**

A tennis ball is served 2.00 degrees above the horizontal at a height of 2.40 meters, 12.0 meters from a net that is 0.900 meters high. (a) If the tennis ball is to clear the net by at least 0.200 meters, what is its minimum initial velocity? (b) If the tennis ball clears the ...

*February 8, 2016 by tom*

**physics**

A tennis ball is served 2.00 degrees above the horizontal at a height of 2.40 meters, 12.0 meters from a net that is 0.900 meters high. (a) If the tennis ball is to clear the net by at least 0.200 meters, what is its minimum initial velocity? (b) If the tennis ball clears the ...

*February 8, 2016 by tamara*

**physics**

A tennis ball is served 2.00 degrees above the horizontal at a height of 2.40 meters, 12.0 meters from a net that is 0.900 meters high. (a) If the tennis ball is to clear the net by at least 0.200 meters, what is its minimum initial velocity? (b) If the tennis ball clears the ...

*February 9, 2016 by Kristina *

**physics**

A tennis ball is served 2.00 degrees above the horizontal at a height of 2.40 meters, 12.0 meters from a net that is 0.900 meters high. (a) If the tennis ball is to clear the net by at least 0.200 meters, what is its minimum initial velocity? (b) If the tennis ball clears the ...

*February 9, 2016 by tom*

**Physics Help!!!**

A tennis ball is served 2.00 degrees above the horizontal at a height of 2.40 meters, 12.0 meters from a net that is 0.900 meters high. (a) If the tennis ball is to clear the net by at least 0.200 meters, what is its minimum initial velocity? (b) If the tennis ball clears the ...

*February 9, 2016 by tom*

**math**

To avoid a pond, Tom must walk 10 meters south and 24 meters east. To the nearest meter, how many meters would be saved if it were possible to walk through the pond? 10^2 + 24^2 = C^2 100 + 576 + C^2 C^2 = 676 C^2 = SQRT of 676 or 26 meters

*June 4, 2016 by mike*

**Algebra **

The underside of a concrete bridge forms a parabolic arch that is 32 meters wide at the water level and twelve meters high in the center. The road (top of the bridge) is forty eight meters wide, and the minimum thickness of the concrete is two meters.

*May 12, 2016 by Someone that wanna pass*

**Math**

A trough is 8 meters long, 3 meters wide, and 5 meters deep. The vertical cross-section of the trough parallel to an end is shaped like an isoceles triangle (with height 5 meters, and base, on top, of length 3 meters). The trough is full of water (density ). Find the amount of...

*March 18, 2014 by Hao*

**math**

If the radius of a circular wave is increasing at 2 meters/sec, how fast is the area changing when the radius is 5 meters? A)62.8 square meters per second B)25.0 square meters per second C)31.4 square meters per second D)6.3 square meters per second E) None of the above

*March 7, 2013 by Jessica*

**math**

a fencing company was asked to enclose three gardens with wire fences: a rectangular garden with a length of 270 meters and a width of 1123.62 meters; a square garden with a side length of 657.955 meters; and a rectangular garden with a width of 35 meters and a length that is ...

*September 20, 2012 by christian*

**Science**

Which of the following is an accurate statement of an acceleration value, translated from symbols into words? A. 3 meters per second B. 3 meters per second squared C. 3 square meters per second D. 3 meters in 3 seconds

*April 27, 2010 by Judy*

**Algebra**

1. Create the indicated algebraic expression. Use descriptive variables. The length of a rectangular lawn is 6 ft more than three times the width of the lawn. Express the length of the lawn in terms of the width. A. 3+w+6 B. 3(w+6) C. 6w+3 D. 3w+6 For 1 I thought it was B? 2. ...

*January 16, 2013 by Krissy *

**Calculus ~ Related Rates**

A man 2 meters tall walks at the rate of 2 meters per second toward a streetlight that's 5 meters above the ground. At what rate is the tip of his shadow moving?We've already set this up part of the way. We know that dx/dt = - 2 meters per second, and we're looking for dy/dt.

*January 5, 2012 by Mishaka*

**I NEED HELP PLEASE**

A trough is 8 meters long, 3 meters wide, and 5 meters deep. The vertical cross-section of the trough parallel to an end is shaped like an isoceles triangle (with height 5 meters, and base, on top, of length 3 meters). The trough is full of water (density ). Find the amount of...

*March 19, 2014 by Hao*