Sunday

December 21, 2014

December 21, 2014

Number of results: 27,515

**chemistry**

A block of metal has a width of 3.2 cm, a length of 17.1 cm, and height of 3.7 cm. Its mass is 1.3 kg. Calculate the density of the metal.
*August 27, 2010 by Mely*

**Chem**

A block of metal has a width of 3.2 , a length of 17.1 , and height of 4.8 . Its mass is 1.2 . Calculate the density of the metal.
*September 22, 2010 by Anonymous*

**chemistry**

A block of metal has a width of 3.2 , a length of 17.1 , and height of 4.8 . Its mass is 1.2 . Calculate the density of the metal.
*June 3, 2013 by sue*

**chemistry**

A block of metal has a width of 3.2cm, a length of 17.1 cm, and height of 5.2 cm. Its mass is 1.1 kg. Calculate the density of the metal
*September 11, 2010 by Javier*

**chem**

A block of metal has a width of 3.2cm, a length of 17.1cm, and height of 3.6 cm. Its mass is 1.3 kg. Calculate the density of the metal.
*September 7, 2011 by jake*

**chemistry**

A block of metal has a width of 3.2 cm, a length of 17.1 cm, and height of 3.9cm . Its mass is 1.3kg . Calculate the density of the metal.
*September 1, 2013 by joe*

**Chemistry **

A block of metal has a width of 3.2 cm, a length of 17.1 cm, and height of 5.8cm . Its mass is 1.5kg . Calculate the density of the metal.
*September 2, 2013 by Jenn*

**Chem**

A block of metal has a width of 3.2 cm , a length of 17.1 cm , and height of 5.2cm . Its mass is 1.2kg . Calculate the density of the metal
*September 12, 2013 by Jillian*

**Chem**

A block of metal has a width of 3.2 cm, a length of 17.1 cm, and height of 4.3cm . Its mass is 1.2kg . Calculate the density of the metal.
*September 16, 2013 by Cf*

**Chemistry**

A block of metal has a width of 3.2 , a length of 17.1 , and height of 5.8 WHAT is the VOLUME OF THE BLOCK?
*August 28, 2008 by Beth*

**Chemistry**

A block of metal has a width of 3.2 cm , a length of 17.1cm , and height of 5.8cm . Its mass is 1.5kg . Calculate the density of the metal.
*September 29, 2012 by Rae*

**maths-urgent**

a metal block of length 4cm ,breadth 3cm and height 2.5 weighs 500g.what is the mass of a block of length 5cm,breadth 4cm made of the same metal.
*January 7, 2013 by manpreet*

**shakhenbi**

a block of metal has a length of 20cm, breadth 10cm and height 5cm. its mass is 2.7kg. find the density of the metal in g/cm3. find out what the block is made of.
*August 19, 2011 by tomba*

**physics**

a block of metal has a length of 20cm, breadth 10cm and height 5cm. its mass is 2.7kg. find the density of the metal in g/cm3. find out what the block is made of.
*August 19, 2011 by tomba*

**MATH!**

The length of a triangle is twice the width. The area is 32 square units. Find the length and width. I have the length of the triangle=2x and the width=x... so would the equation be 2x(x)=32 OR NO? Assume the "length" is the height measured from some side we will call the "...
*May 7, 2007 by megan*

**Pre Calc**

Given the sum of all the edges of the rectangular solid at the right is 76cm, the area of all of its faces is 228 cm^2, and its volume is 216 cm^3. Find its height, width and length. [hint- Let the height, width and length be the roots of a cubic polynomial x^3 + ax^2 + bx +c...
*September 12, 2010 by Emma M*

**Algebra 2**

A rain gutter is made by bending up the edges of a piece of metal of width 36 in. If the length of the piece of metal is 24 in., find the height that maximizes the volume. I need all of the steps to get to the answer.
*April 22, 2011 by Brandon*

**Math**

A piece of metal is bent into a rectangle and has a length which is 5 times as long as its width. If the perimeter of the piece of metal is 13 feet 6 inches, find the length and the width of the piece of sheet metal. You must use a variable , write an equation and solve the ...
*May 16, 2008 by Jon*

**chemistry**

If a block of wood with the length 1.05 m, height 5.24 cm, and width 3.36 cm and a mass of 2.56 kg what is the density?
*April 12, 2009 by eve*

**Chemistry**

Block A of an unknown metal has a volume of 125cm^3 . Block B of a different metal has a volume of 145cm^3. If block A has a greater mass than block B, what can be said if the relative densities of two metal?
*January 18, 2013 by Quan*

**chemistry**

What is the density of a 23.92 g object block if the dimensions: length = 10.6 mm height = 5.47 cm width = 0.0352 m
*September 24, 2012 by danyae*

**chemistry**

What is the density of a 16.54 g object if the dimensions of the block are: length = 12.6 mm height = 1.91 cm width = 0.0140 m
*February 19, 2013 by kim*

**chemisty**

What is the density of a 17.12 g object if the dimensions of the block are: length = 12.6 mm height = 9.82 cm width = 0.0140 m
*February 20, 2013 by mariam*

**chemistry**

What is the density of a 19.74 g object if the dimensions of the block are: length = 12.6 mm height = 2.50 cm width = 0.0140 m
*February 16, 2014 by malb3*

**chemistry**

What is the density of a block of unknown material with a mass of 19.07 g if the dimensions are: length = 3.1 cm height = 1.9 cm width = 4.6 cm
*September 24, 2012 by danyae*

**chemistry**

What is the density of a block of unknown material with a mass of 15.86 g if the dimensions are: length = 2.2 cm height = 1.7 cm width = 4.8 cm
*February 19, 2013 by kim*

**science**

What is the density of a block of unknown material with a mass of 13.26 g if the dimensions are: length = 2.2 cm height = 1.7 cm width = 4.1 cm
*February 20, 2013 by mariam*

**chemistry**

What is the density of a block of unknown material with a mass of 13.26 g if the dimensions are: length = 2.2 cm height = 1.7 cm width = 4.1 cm
*February 20, 2013 by mariam*

**chemistry**

What is the density of a block of unknown material with a mass of 17.02 g if the dimensions are: length = 2.2 cm height = 1.7 cm width = 2.7 cm
*February 16, 2014 by malb2*

**chemistry, i need helppp like a.s.a.p!!!!**

What is the density of a 23.92 g object block if the dimensions: length = 10.6 mm height = 5.47 cm width = 0.0352 m
*September 24, 2012 by danyae*

**chemistry, i need help like a.s.a.p!!!!**

What is the density of a block of unknown material with a mass of 19.07 g if the dimensions are: length = 3.1 cm height = 1.9 cm width = 4.6 cm
*September 24, 2012 by danyae*

**Algebra**

The volume of a rectangular box is given by the formula V = lwh, where l is length, w is width, and h is height. What happens to the volume if the length and height are doubled and the width is tripled? I don't know how to solve this problem at all. Thank you for your help!
*March 23, 2009 by Cassie*

**MATH help**

A box with no top is to be constructed from a piece of cardboard whose Width measures x inch and whose length measures 3 inch more than the width the box is to be formed by cutting squares that measure 1 inch on each side of the 4 corners and then folding up the sides If the ...
*September 18, 2011 by HM*

**math**

length______ width 14 height 11 surface area_______ volume 2029.72 length*width*height gives you volume, which you know. But you can solve for length.
*June 12, 2007 by skye*

**chem**

what is the density of a block of unknown material with a mass of 11.56g if the dimension are length = 2.2cm, height =1.7cm, width =6.1cm
*September 4, 2014 by Anonymous*

**5th grade math**

Im confused please help thank you To find the volume of a box, you multiply the length times the width time the height. The colume of a box is 36,000 cubic inches. Its width is 40 in and its height is 15 in. Eatimate the length of the box.
*September 13, 2010 by Dakota*

**Calculus**

A rectangle is bounded by the x-axis and the semicircle y=(25-x^2). Question is, what length and width should the rectangle have so that its area is a maximum, and what is the maxuimum area? Area= length*width = 2x*y= 2x*sqrt(25-x^2) Now, take that, differentiate it, set to ...
*October 6, 2006 by Tezuka*

**Pre-Cal**

In terms of x, write expressions for the length, width, height, and volume of the boxes created in the activity. I just need an example, so i'll just give one box. X-1 length-20 width-14 height-1 volume-280
*February 6, 2012 by Lauren*

**science **

You measure the dimensions of a rectangular block of aluminum to determine its volume. It has the following dimensions. length = 10.27 cm; width = 4.92 cm; height = 1.53 cm Assuming that each of these measurements is accurate to the nearest 0.01 cm, find the volume of the ...
*February 3, 2014 by christina*

**honors algebra**

the volume V of a rectangular prism is given by V=lwh, where l is the length of the prism, w is it's width, and h is its height. The length of a certain rectangular prism is three times its width, and its height is 2 feet less than its width. write a simplified expression that...
*November 13, 2012 by amy*

**math**

the length of a rectangle is 6 cm more than its width. the area is 11 cm squared. find the length and width. look at the post by anonymous at 8:55, it is almost the same as yours. Do it the same way. length= x+6 width=x x(x+6)=11 x^2 + ^x =11 x^2+6x-11=0 (x-_)(x-_) solve for x...
*May 8, 2007 by help me plz*

**Math help please**

1. The ordered pairs (0, 1), (1, 4), (2, 16), (3, 64), and (4, 256) represent a function. What is a rule that represents this function? y = 4^x y = 4x y = x^4 y = x + 4 2. Consider the relationship between the height of a tree and time. Time would be considered which of the ...
*November 22, 2013 by Charlotte*

**math**

Which two rectangles have an area of 72 square centimeters? A. length 12 cm, width 6 cm B. length 20 cm, width 16 cm C. length 9 cm, width 8 cm D. length 8 cm, width 7 cm
*May 7, 2013 by ellie*

**algebra **

The length of a rectangle is 6 cm more than four times the width. If the perimeter of the rectangle is 42 cm, what are its dimensions? a. length = 18 cm; width = 3 cm b. length = 18 cm; width = 9 cm c. length = 6 cm; width = 9 cm d. length = 3 cm; width = 18 cm
*January 20, 2011 by tiffany*

**Math-Algebra**

1. What is the base of a triangle if its area is represented by 3z^2+ √5z mm^2 and its height is z − √3 mm? 2. What will happen to the area of a rectangle if you do the follo+wing? a. multiply the length by 2 and use the same width b. multiply the width by 2 ...
*December 18, 2013 by McKenna Louise*

**chemistry**

Block A of an unknown metal has a volume of 125 cm3. Block B of a different metal has a volume of 145 cm3. If block A has a greater mass than block B, what can be said of the relative densities of the two metals? (Assume that both blocks are solid.)
*September 1, 2014 by lexie*

**programming**

Having trouble with this program running, can anybody help solve my problem: #include <stdio.h> #include <stdlib.h> #include <string.h> void draw_x(int width, int height); int main(int argc, char *argv[]){ int width, height; if(argc != 3){ printf("Syntax: ...
*February 8, 2010 by Riley*

**math**

the length of a rectangular playing field is 5ft less than twice its width. If the perimeter is of the playing field is 230ft, find the lenght and width of the field. How would I even begin to set up the equatin let alone solve the equation 230=2w-5+2w-5+w+w this is bcus your ...
*April 16, 2007 by aiyunna*

**Algebra II**

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

**math**

what would the dimensions of a retangle be whose perimeter is 50(P=50)inches when the length is 2x-5 ane the width is unknown The width must be 25 - (2x-5) = 30-2x, since the sum of the length and width must be half the perimeter. You do not have enough information to solve ...
*April 22, 2007 by Sissy*

**physics**

A 236 kg block is released at a 4.2 m height as shown. The track is frictionless except for a portion of length 6.2 m . The block travels down the track, hits a spring of force constant k = 1483 N/m . The coefficient of kinetic fric- tion between surface and block over the 6.2...
*June 24, 2014 by jennifer*

**algebra**

suppose the length of a rectangle increases,but the perimeter remains at 70 feet. How does the width change? Either the width increases, decreases or remains the same. Which of these three choices makes the most intuitive sense? We know perimeter = 2(length +width) If ...
*September 12, 2006 by christine*

**physics**

A 20. kg block is placed at the top of a 10. meter-long inclined plane. The block starts from rest and slides without friction down the length of the incline. (A diagram shows a height of 5.0 m, the 10. m length of incline/hypotenuse and the 20. kg block sliding on the ...
*March 20, 2011 by Sejul*

**math**

find the volume of a tent having the shape of a rectangular solid of length 13 ft, width 12 ft, and heihght 8 ft topped by a rectangular pyramid of the same width and length with height 5 ft
*July 2, 2010 by Jaime*

**geometry**

The length of a box is 4 inches longer than its width, and the height is 2 inches shorter than the width. Which equation can you use to solve for the length of the box if the volume is 240 cubic inches? (Assume that the width of the box is x.)
*March 8, 2011 by Anonymous*

**ALGEBRA**

The size of a television is given by the length of the diagonal of the screen. The ratio of the height to the width of wide flat-screen TV is 8:15. Find expressions for the width and height of a wide-screen TV in terms of the length of its diagonal.
*May 14, 2014 by Sandra*

**geometric**

The perimeter of a rectangular carpet is 70feet. The with is three -fourths the length .Find the width. 38. The length of a rectagular room is six times as the width . The perimeter 84 yards. find the width. 39. The width of a rectangle is 12 less than the length. The ...
*March 13, 2007 by baby girl*

**Math**

All these are either rectangles or squares 1.Rectangle. 5 is length and 10 is width 10x5=50 2.Square. 5 is length and 5 is width 5x5=25 3.Rectangle. 6 is length and 8 is width 8x6=48 4.Square. 10 is length and 10 is width 10x10=100 5.Rectangle. 40 is length and 20 is width ...
*January 18, 2012 by Connor*

**algebra**

What is the width of a rectangle with a perimeter of 70 feet if its length is 1 foot? 2 feet? L.feet? perimeter = 2(length + width) If perimeter = 70 then 35= length + width Now substitute 1,2,and L and solve for width. how do you find the L. feet? L is supposed to be any ...
*September 12, 2006 by christine*

**math**

The width of a rectangular prism is w centimeters. The height is 2 centimers less than the width. The length is 4 centimeters more than the width. If the volume of the prism is 8 times hte measure of hte length, find the dimensioon of the prism.
*January 30, 2011 by hjd*

**algebra**

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

**Math**

Each of the three dimensions of a cube with sides of lenth s centimeters is decreased by a whole numer of centimeters. The new volume is cubic centimeters is given by V(s)=s^3-13s^2+54s-72. a) Find V(10) b) If the new width is s-6 centimeters, then what are the new length and ...
*September 12, 2010 by Nina*

**Algebra 1**

A square pyramid has a volume of 560 in to the third power, a base length of 10 in., and a height of 14 in. What is its base width? My textbook states that the formula v = 1/3lwh relates the volume of a square pyramid to its base length l, width w, and height h. However, I am ...
*October 7, 2013 by Anonymous*

**physics**

A 12.0 g bullet is fired into a 13.9kg wooden block that is hanging straight down, suspended by a 2.00 m length of light line. The bullet has a muzzle velocity of 94.2 m/s. When the bullet hits the block, the bullet stays in the block. The block swings outward so that the line...
*March 15, 2014 by Shelby*

**calculus**

A water-trough is 10m long and has a cross-section which is the shape of an isosceles trapezoid that is 30cm wide at the bottom, 80cm wide at the top, and has height 50cm. If the trough is being fi lled with water at the rate of 0.2 m3/min, how fast is the water level rising ...
*December 1, 2012 by asdf*

**physics lab**

For a physics lab, I measured length, width, thickness, and mass of 2 blocks of wood, 3 trials each. There were 2 questions on the lab that I did not understand how to do. 1. For each trial, find the ratio between the mass and the volume. Based on your data, what is the ...
*September 1, 2006 by anonymous*

**Algebra 2**

a computer manufacturer needs to change the dimensions of its foam packaging for a new model of computer. the width of the original piece is three times the height, and he length is equal to the height squared. The volume of the new piece can be represented by the equation V(h...
*January 24, 2010 by Jane*

**Intermediate Algebra**

The plans for a shed call for a rectangular floor with a perimeter of 192 ft. The length is two times the width. Find the length and width. The width is ____ft The length is ____ ft
*March 5, 2014 by Spacegazing*

**algebra**

give the demensions of rectangles with the perimeters of 70 feet and length-to-width ratios of 3 to 4, 4 to 5, and 1 to 1. Ok, the perimeter is 70 and perimeter = 2(length + width) The ratio is length:with=3:4 so length = (3/4)width 70 = 2(length + width) =2((3/4)width + ...
*September 12, 2006 by christine*

**ALGEBRA HELP**

The perimeter of a rectangle is 60cm. The length (L) of the rectangle can be represented by (2x-7). What are the dimensions? A) length=10 width=14 B) length=6 width=18 C) length=9 width=15 D) length=10 width=1 or 15
*October 21, 2013 by cv*

**Algebra**

the length of a rectangle is twice the width. The area is 200 yd^2 Find the length and the width. The length is _____ yd The width is ______ yd Could I get help please!!!!
*February 7, 2009 by pj*

**Math**

A box with no top is to be constructed from a piece of cardboard whose Width measures x inch and whose length measures 3 inch more than the width the box is to be formed by cutting squares that measure 1 inch on each side of the 4 corners and then folding up the sides If the ...
*September 18, 2011 by HM*

**PHYSICS**

A 209 kg block is released at height h = 3.3 m as shown. The track is frictionless except for a portion of length 7 m. The block travels down the track, hits a spring of force constant k = 1545 N/m, and compresses it 1.9 m from its equilibrium position before coming to rest ...
*December 10, 2014 by Joshua*

**Algebra**

The width of a rectangle is 2ft less than the length. The area is 8ft^2.Find the length and the width. The width is__ ft. The length is __ ft.
*September 4, 2011 by Nikayla*

**math**

The length of a rectangle is 4 times the width. The perimeter is 50cm. Find the length and width. Write the equations. What is the length and width?
*March 14, 2012 by lea*

**basic geometric**

10. a rectangle has width the same as a side of a square whose perimeter is 20m. the length of the rectangle is 9m. find the perimeter of this rectangle. 34. The width of a rectangular picture is one-half the length. The perimeter of the rectangle is 72 inches. Find the length...
*March 12, 2007 by vero*

**geometry**

the width of a rectangular room is 4m wider tan its height and the length is 8m wider than the width .if the total area of the wall is 512m square, find the length of the room.
*June 24, 2012 by Anonymous*

**precalc**

Hi. Can someone please help me with this problem? A rectangular block of metal weighs 3 oz. How many lbs will a similar block of the same metal weigh if the edges are twice as long?
*October 31, 2007 by Charlotte*

**calculus**

Previously asked: the length of a rectangular prism is increasing at a rate of 8 cm/s, its width is increasing at a rate of 3 cm/s, and its height is increasing at a rate of 5 cm/s. when the length is 20 cm, width is 10 cm, and height is 15 cm, how fast is the volume of the ...
*December 7, 2014 by Dani*

**math**

A rectangle has a length of 4x and a width of 4x-2. Its perimeter is 12 inches. Find the length and width. Write the equations. What is the length and width?
*March 14, 2012 by lea*

**Algebra**

The width of a rectangle is 1/6 the length. If the length and the width are each increased by 4 cm, the new perimeter is 70. Find the original length and width.
*October 3, 2012 by Jayna*

**phy**

Calculate the density for a rectangular block using the following measurements. Length: 2.70 cm, Width: 1.10 cm, Height: 9.09 cm, Mass: 72.17 g. Round your answer for density to 2 decimal places. Include the correct unit for density. Show your work
*May 18, 2011 by irtaza*

**algebra , help**

Can someone help me set up the equations thanks. Directions: Solve each of the following applications. Give all answers to the nearest thousandth. Problem: Geometry. The length of a rectangle is 1 cm longer than its width. If the diagonal of the rectangle is 4 cm, what are the...
*February 20, 2007 by jas20*

**Algebra**

Please help. I have tried many times to come up with something after reading the material but I am completely stumped. A cubic container, with sides of length, x inches, has a volume equal to x^3 cubic inches. The height of the container was decreased and the length was ...
*November 21, 2009 by Alaina*

**math**

Express the volume of a rectangular solid (box) whose height, width and length are x,2x and 3x, respectively, as a function of its width.
*July 1, 2011 by J*

**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 = 16t + 60t + 6. What will the height be at t = 3 seconds? (1 point) 35 feet 40 feet 42 feet 45 feet 5. Solve x 121 = 0 (1 point...
*March 20, 2014 by Gabby*

**Calculus **

Consider a box with a square base of side length s and height h. If the sum of the length, width, and height of the the box is 120 inches, what is the maximum possible volume? Justify your answer.
*February 13, 2013 by Vivi*

**algebra**

The perimeter of the state of Wyoming is 1280mi. The width is 90mi less than the lenght. Find the width and the length. I dont know what formula to use or how to write it. Perimeter = length + length + width + width = 1280 miles OR P = 2L + 2W = 1280 miles (equation 1) width...
*September 19, 2006 by summer*

**Physics - Torque**

Consider a rectangular block of mass 30kg, height= 3m, length = 2m. A force F is applied horizontally at the upper edge. The acceleration of gravity is 9.8 m/s^2. 1)What is the minimum force required to start to TIP the block? 2)What is the minimum coefficient of static ...
*April 22, 2007 by Belle*

**Algebra**

Decreasing cube. Each of the three dimensions of a cube with sides of length s centimeters is decreased by a whole number of centimeters. The new volume in cubic centimeters is given by V(s) equals s power of 3 - 13s power of 2 + 54s - 72. a) Find V(10). b) If the new width...
*August 6, 2010 by Simone*

**Calculus**

The burning candle A candle is placed a distance l1 from a thin block of wood of height H. The block is a distance l2 from a wall as shown in Figure 7.1. The candle burns down so that the height of the flame, h1 decreases at the rate of 3 cm/hr. Find the rate at which the ...
*October 26, 2010 by Fee*

**physics**

A 20. kg block is placed at the top of a 10. meter-long inclined plane. The block starts from rest and slides without friction down the length of the incline. (A diagram shows a height of 5.0 m, the 10. m length of incline/hypotenuse and the 20. kg block sliding on the ...
*March 20, 2011 by Sejul*

**calculus**

the base of a triangle is 2 cm shorter than the width of a rectangle. The rectangle's length is 4 times its width and the triangle's height is the same as the rectangle's length. find the area of both figures if the difference of the two areas is 30cm2
*September 8, 2010 by Anonymous*

**Quadratic Equation**

The dimensions of a rectangle are such that its length is 3 in. more than its width. If the length were doubled and if the width were decreased by 1in., the area would be increased by 150 in.^2. What are the length and width of the rectangle?
*March 15, 2011 by Brandon*

**math**

the dimensions of a rectangle are such that its length is 3 inches more than its width. if the length were double and if the width were decreased by 1 inch, the area would be increased by 66inches ^2. What are the length and width of the rectangle?
*March 24, 2011 by fernando*

**algebra**

the primeter of a rectangle is 24ft. the length is 2 ft longer than the width. Find the dimensions. Write a system of linear equations and solve the resulting system. Let x be the length and y be the width. is the answer for the length 14ft and the width 10 ft?
*March 5, 2013 by ashley *

**College Algebra**

The height of a box is 3cm less than the width. The length is 2cm less than the width. The volume is 50cm^3. what is the width of the box?
*April 2, 2012 by Caitlin*

**algebra**

the dimensions of a rectangle are such that its length is 5 in more than its width. If teh length were doubled and the width were decreases by 2 in, the area would be increased 136 in^2,what are the length and width of the rectangle
*July 27, 2013 by Anonymous*

**algebra**

The length of a rectangular garden is 5 ft less than 3 times its width. If the perimeter of the garden is 22 ft, find the dimensions of the garden. I will start you off with... let the width be w, then the length is 3w - 5 I am pretty sure you can form the equation from there ...
*May 13, 2007 by Dee*

**Physical Sciance**

Calculate the density for a rectangular block using the following measurements, Length: 2.70cm, Width:1.10cm, Height: 9.09cm, Mass: 72.17g. Round your answer for density to 2 decimal places. Include the correct unit for density.
*February 26, 2008 by Devin*

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