Thursday

May 28, 2015

May 28, 2015

Number of results: 14,660

**geometry**

If the length of a rectangle is twice its width, w, write an expression to represent the perimeter of the rectangle. If the perimeter of the rectangle is 72 inches, what is the length and width of the rectangle?
*September 6, 2011 by Maddie*

**math**

The width of the rectangle is half its length and the perimeter is 42m.caculate the area of the rectangle.find the width and length of perimeter and area.
*January 12, 2012 by anna*

**Pre-Calculus**

Solve the triangle. Round to the nearest tenth. B=54deg a=42 c=6.5 1. I found length of b using law of cosine and got 36.2 2. Using side of b, I used the law of sine to get angle A = 28.2 3. I added B+A and subtracted from 180 to get angle C = 127.8 which DOES NOT make sense ...
*December 7, 2009 by Vincent*

**algebra**

How do you know if a value is a solution for an inequality? How is this different from determining if a value is a solution to an equation? If you replace the equal sign of an equation with an inequality sign, is there ever a time when the same value will be a solution to both...
*May 21, 2008 by Anonymous*

**Algebra**

How do you know if a value is a solution for an inequality? How is this different from determining if a value is a solution to an equation? If you replace the equal sign of an equation with an inequality sign, is there ever a time when the same value will be a solution to both...
*May 26, 2008 by Anonymous*

**geo**

Describe the topography of the interior plains as you would see it if you were driving across the region from west to east to the Trans-Canada highway.
*November 28, 2010 by john*

**Physics**

Simpson drives his car with an average velocity of 45.1 km/h to the east. How long will it take him to drive 153 km on a straight highway? Answer in units of h
*September 8, 2011 by Abby*

**Science**

While traveling along a highway a driver slows from 24 m/s to 15 m/s in 12 seconds. What is the automobile's acceleration? How would I show the work and find this answer?
*October 29, 2012 by Robert*

**Math**

I'm having some trouble converting square/cubic metric units. Ex: 1500 cu. cm = ? cu. dm? I have this number line thing that helps, and so far I know that you divide by 10 (I think, decimeter is higher than centimeter, yes?), but now what? Thank you!
*May 12, 2009 by Anonymous*

**science**

Earth's diamter is about 13,000 kilometers. If a globe has a diameter of 0.5 meter, write the globes scale as a ratio. What distance on earth would 1 centimeter on the golbe repersent?
*February 20, 2011 by linda*

**science**

As mentioned before, our asteroid is in the shape of a sphere and has a mass of 2000 kilograms. Determine the density (in grams per cubic centimeter) of this asteroid if its diameter is known to be 1.2 meters.
*October 11, 2014 by stacy*

**Algebra**

I think I have the correct equation, but can someone please double check and tell me if I am correct. Scenario: Suppose that the width of a rectangle is 5 inches shorter than the length, and that the perimeter of the rectangle is 50. Question: Set up an equation for the ...
*January 3, 2009 by Patrick*

**Math**

suppose that a given quadrilateral is a kite with no right angles. which of the following is possible A: the quadrilateral is a rhombus B: the quadrilateral has congruent diagnols C: the quadrilateral is a trapezoid D: None
*January 30, 2010 by Anonymous*

**Algebra **

How do you know if a value is a solution for an inequality? How is this different from determining if a value is a solution to an euation? If you replace the equal sign of an equation with an inequality sign, is there ever a time when the same value will be a solution to both ...
*September 28, 2009 by Kellie*

**math**

The cargo area of the deck of a barge is 60 ft wide. Cargo containers are 7 ft wide, and can be placed side-by-side with a gap of 6 in between them. How many containers may be placed side-by-side on the deck of the barge?
*February 10, 2010 by kim*

**how would i solve this, math**

Geometry. For the floor plans given in exercise 27, determine whether the side through the points (2,3) and (11,6) is perpendicular to the side through the points (2,3) and (-3,18). # 27 states the following: Geometry. Floor plans for a building have the four corners of a room...
*January 15, 2007 by jasmine20*

**geometry**

The perimeter of a triangle, its area, and the radius of the circle inscribed in the triangle are related in an interesting way. Prove that the radius of the circle times the perimeter of the triangle equals twice the area of the triangle.
*April 11, 2010 by sarah A*

**math b**

the vertices of triangle ABC are A(-2,3), B(0,-3), and C(4,1). prove, by means of coordinate geometry, that the median to side BC is also the altitude to side BC.
*May 25, 2009 by jojo*

**Grammar and Composition**

What is a good sentence with the word 'juxtapose'. It means to place close together or side by side, as for contrast. Thanks
*December 28, 2009 by y912f*

**geometry**

the measure of the shorter parallel side of b is 6in and the longer side is 8in, the height of that figure is 10in what is the area?
*February 7, 2010 by debbie*

**science**

Explain why ionic compounds are formed from the left side of the periodic table reacts with nonmetalfrom the right side.
*February 16, 2011 by Philip*

**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*

**pre calculus**

For a given right triangle, angle B = 46 degrees and side c = 30 feet.What is the length of side b to the nearest foot?
*November 30, 2012 by Kelsey*

**chemistry**

balance: Al2(CO3)3 --> Al2O3 + CO2 i dont know how to do the reactant side so i can figure out the product side...
*January 9, 2013 by simon*

**geometry**

Large triangle (30¢X, 60¢X, and 90¢X), the base is 15 feet. and small triangle (30¢X, 60¢X, and 90¢X) the above two triangle the ratio of the perimeter of the large triangle to the perimeter of the small triangle is ¡Ô3. Determine the area of the small triangle rounded to the ...
*March 28, 2012 by Piggy*

**geometry**

Large triangle (30¢X, 60¢X, and 90¢X), the base is 15 feet. and small triangle (30¢X, 60¢X, and 90¢X) the above two triangle the ratio of the perimeter of the large triangle to the perimeter of the small triangle is ¡Ô3. Determine the area of the small triangle rounded to the ...
*March 28, 2012 by Piggy*

**MATH**

Spencer wants to plant strawberries for his garden. To do this, he has to increase the garden and the fence around it. Spencer decides one side can be twice as big and the other side four times as big. One side measures 7feet long and the other side is 5 feet long. What is the...
*December 1, 2014 by KAYLA*

**Math**

Suppose that a given quadrilateral is a kite with no right angles. Which of the following is possible? A) The quadrilateral is a trapezoid. B) The quadrilateral is a rhombus. C) The quadrilateral has congruent diagonals. D) None of the above
*October 29, 2009 by Becca*

**math**

Karina drew a shape with 2 pairs of parallel sides and no right angles. Which shape could Karina have drawn? A. square B. rhombus C. rectangle D. trapeziod
*March 27, 2013 by sarah*

**Probability**

One of two cards is black on one side and white on the other side. The second card is black on both sides. One card is selected at random and the side facing up is black. What is the probability that the other side of the card is white?
*January 2, 2010 by Anna*

**elementary math for teachers **

Suppose that a given parallelogram is not a rhombus or a rectangle. Which of the following can you conclude about this parallelogram? A) It is a square. B) Its angles are not all congruent. C) Its diagonals are perpendicular bisectors of each other. D) None of the above
*October 15, 2009 by jen*

**math**

The manager turns the restaurants two neon signs on at the same time both signs blink as theyaare turned on. One sign blinks every 9 seconds and one sign blinks every firfteen seconds. How many seconds will they both blink together again?
*September 18, 2014 by amber*

**Math**

What is the equation for a graph that is shaped like a "w" but it has no pointy points, it is curvy? thank you
*October 9, 2007 by Mike*

**greece**

What factors Shaped the development of Greek Culture, government, and power?
*March 10, 2008 by Anonymous*

**biology**

why are animals shaped differently in cooler climates than in warmer ones?
*August 21, 2008 by jenna*

**2nd grade**

what is a part of the earth that is shaped in a special way, is that a landform
*October 6, 2009 by mike*

**biology**

what are some of the ways in which we can differentiate spores from coccus shaped bateria?
*February 10, 2010 by Tom*

**math**

i need help by knowing how to find area with 3 shaped in all please help
*January 19, 2011 by Jacqueline*

**omt101**

Draw three differently shaped cross sections of an ellips
*March 28, 2011 by Yogesh*

**math**

draw three differentiy shaped cross sections of an ellipsoid
*March 30, 2011 by om*

**statsitsc**

b. The graph of a normal distribution is bell-shaped. (True/False)
*August 20, 2011 by ann*

**Math**

What is the volume of a cubed shaped box with edges 6 centimeters in length
*June 21, 2012 by Misty*

**chemistry**

though water has V shaped,why doesnot it scratch our throat?
*January 3, 2013 by sushila*

**S.S**

Were there any key events in Elizabeth Cady Stantons life that shaped her dream for the U.S
*March 5, 2015 by anonymous *

**science**

A ________ is about the size of a dime, the width of a sugar cube, the length of a bee or small bug, or the size of a bean. a) centimeter b) millimeter c) meter d) milliliter e) none of the above a
*September 4, 2010 by pam*

**chemistry **

a copper sample has a mass of 44.65 g and a volume of 5.0cm^3. what is the density of copper, expressed as gram per cubic centimeter? can you please write the formula then show the working? thank you really appreciate it
*August 27, 2012 by help3*

**Physics**

a 2 centimeter diameter ball of 50 grams rolls at constant velocity across a table. it takes 4 seconds to travel 3 meters. Sketch graph of horizontal position, velocity and acceleration.
*December 5, 2012 by Tan*

**Math**

Pythagorean Theorem A rectanglar box is 9 in. wide, 11 in. tall, and 20 in. long. What is the diameter of the smallest circular opening through which the box will fit? If necessary, round to the nearest tenth of a centimeter.
*April 1, 2013 by Jane*

**Algebra**

A small painting has an area of 400 cm^2. The length is 4 more than 2 times the width. Find the dimensions of the painting. Solve by completing the square. Round answers to the nearest tenth of a centimeter.
*April 9, 2013 by Anonymous*

**algebra**

A small painting has an area of 400 c m 2 . The length is 4 more than 2 times the width. Find the dimensions of the painting. Solve by completing the square. Round answers to the nearest tenth of a centimeter.
*May 20, 2014 by Bobby*

**Radicals w/rational exponents**

Could someone please help me with this. Assume nonnegative and simplify. v45 + v80 - 3 v20 I couldn't figure out how to insert the radical sign so the v represents the radical sign. (3v5 + v3)(v2 + 2v5) (v3+ 4v7)2square ans=root of 5 sqrt45 + sqrt80 - 3 sqrt20 sqrt9*5 + sqrt16...
*November 14, 2006 by Michelle*

**geometry**

if you have two similar polygons and the scale factor is 3:5 and 12 times square root of 3 is one side, what is the cooresponding side
*January 29, 2008 by Anna-Marie*

**math**

if you have two similar triangles and the scale factor is 3:5 and 12 times square root of 3 is one side, what is the cooresponding side
*January 29, 2008 by Anna-Marie*

**Question:8th Grade Algebra**

How do you get a variable term from one side of an equation onto the other side? Can I get an example please?
*October 28, 2008 by Joy*

**Business Calculus**

An ice cube that is 3 cm on each side is melting at a rate of 2 cm cubed per minute. how fast is the length of the side decreasing?
*October 21, 2010 by Joel*

**maths**

a square of 10cm on each side, using the side to forma curve as a radius from each end. find the area from the four arches.
*November 13, 2010 by anonymous*

**math**

Tom has somee cubes that are two proudest cm on each side. How many of them will fit into a box that is a cube with each side four cm long?
*September 13, 2012 by jake*

**English - Help!!**

1. The sharp rock LACERATED her side as she climbed the side of the cliff. bruised sliced scratched wounded I think it's B? Can someone help?
*April 29, 2014 by Sandy East Ward*

**math**

Consider an equilateral triangle with points located at each vertex and at each midpoint of a side. (See picture.) This problem uses the set of numbers {1, 2, 3, 4, 5, 6}. Place one number at each point. Call the sum of the three numbers along any one side (two vertices and ...
*October 10, 2014 by al*

**Algebra**

When I asked you about the following problem:Solve 4sqrt(6x-2)>4 The first 4 is outside the square root sign and then (6x-2) is under the square root sign >4. You said to do the following. Divide by 4 to get sqrt(6x-2)>1 For this to happen, 6x-2>1 or x>(1/2) ...
*October 19, 2010 by JayLynne-Mathmate please recheck*

**Math**

If one side of a square is increased by 2 inches and an adjacent side is decreased by 2 inches, the area of the resulting rectangle is 32 square inches. Find the length of one side of the square.
*December 19, 2012 by LP*

**physics**

Simpson drives his car with an average veloc- ity of 49.7 km/h to the east. How long will it take him to drive 150 km on a straight highway? Answer in units of h
*October 1, 2013 by alison*

**MATH**

The ratio of the perimeter of triangle KLM to the perimeter of triangle PQR is 5/3 and LM is 4 less than twice QR. Find LM and QR, if Triangle KLM~Triangle PQR. Can someone solve this in ratio and proportion method? Thanks.
*November 10, 2010 by Kevin Loed*

**physics**

A 10000 car comes to a bridge during a storm and finds the bridge washed out. The 700 driver must get to the other side, so he decides to try leaping it with his car. The side the car is on is 24.0 above the river, while the opposite side is a mere 6.80 m above the river. The ...
*February 11, 2008 by samantha*

**Business**

You are the chief executive officer of Money Games Inc.(MGI), which has begun to market Borrow & Spend, a video game set in the world of finance. To buy ads, MGI borrows $50,000 from First Savings Bank. On MGI's behalf, you sign a note for the loan and offer its accounts ...
*March 15, 2011 by Liz Marie Santana*

**chemistry**

You will be presented with three crystallographic directions drawn in a unit cell. Please write the identity of the direction in the space provided below each picture. Use the correct form of brackets for describing a direction, and leave no spaces between numbers. If you must...
*June 1, 2013 by Anonymous*

**chemistry**

You will be presented with three crystallographic directions drawn in a unit cell. Please write the identity of the direction in the space provided below each picture. Use the correct form of brackets for describing a direction, and leave no spaces between numbers. If you must...
*June 2, 2013 by A*

**math 3**

elena packed 48 cubes into this box. each cube has edges that are 1 centimeter. how many layes of cubes did elena make?
*March 3, 2014 by kimmy plus*

**math**

A metal sphere has a mass of 1 kg. 1 cubic centimeter of this metal has a mass of 4.8 grams. find the radius. how do you work this out?
*September 22, 2014 by maya*

**Math**

The speed limit on a highway is 65 mi/hr. What is this speed in km/hr? Is the correct answer 104 km/hr?
*February 25, 2012 by Mandi*

**math**

If a bicycle wheel has a diameter of 63 centimeter. During A journey the wheel make a 510 revolution .how many meter does the bicycle travel
*January 29, 2011 by peta*

**chemistry**

calculate the volume of 17 M concentrated acetic acid solution that is needed to prepare 100 cubic centimeter of 1 M acetic acid?
*September 20, 2011 by mylene*

**chemistry**

calculate the volume of 17 M concentrated acetic acid solution that is needed to prepare 100 cubic centimeter of 1 M acetic acid?
*September 20, 2011 by mylene*

**math**

I have a question that says one rectangle has a 3x4 centimeter area. If I make another rectangle, what's the area if the scale factor is 4?
*November 22, 2011 by Tre*

**basic mathematics**

if a centimeter represents 25 kilometers on a map, what is the distance in kilometers between two points that are 4.5 centimeters apart on the map?
*April 10, 2013 by vanessa*

**Math**

A ball bounces 0.7 of the distance it is dropped. How many bounces will the ball make from a height of 1 meter if a bounce of less than 1 centimeter is to be ignored?
*November 13, 2013 by Kristen*

**living environment **

how many small spaces are marked off within 1 centimeter i know 10mm= 1 cm but when i literally count the small spaces, there are nine of them
*September 9, 2014 by tom*

**Math**

Merrie is putting away the 1 cubic centimeter blocks. She has a box that is 24 cm by 12 cm by 6 cm. How many cubes can she put away in this box?
*April 16, 2013 by Gail*

**geometry**

balloon has a circumference of 23 cm. Use the circumference to approximate the surface area of the balloon to the nearest square centimeter.
*May 9, 2014 by Anonymous*

** math**

Can anyone help me with dq i week 2Post your response to the following: How do you know if a value is a solution for an inequality? How is this different from determining if a value is a solution to an equation? If you replace the equal sign of an equation with an inequality ...
*July 29, 2010 by Norma*

**Math**

The width of a rectangle is fixed at 16 cm. What lengths will make the perimeter greater than 78cm? Would the answer be 23 because 16*2+23*2=78cm or would the answer be 24. Because the perimeter is greater than 78cm
*April 8, 2010 by Richard*

**college math**

the speed limit on a local highway is 65 miles per hour. what is this speed in km/hr
*June 19, 2012 by Lourane*

**phiycics**

vocity 48 kilometers/mph how long will it take 144 kilometers down the highway
*August 28, 2013 by Milo*

**Math**

Choose the word "rectangle," "square," or "rhombus" to fill in the blank and make the statement true. (If none of the words can be used, then write "none.") A parallelogram is a __________ if and only if its diagonals are perpendicular bisectors of each other.
*October 29, 2009 by Becca*

**Math**

Select the geometric figure that possesses all of the characteristics: (1) four equal sides (2) both pairs of opposite sides are parallel (3) it doesn't contain any right angle A) square B) parallelogram C) rhombus D) isosceles triangle I know it's not A or D
*April 16, 2013 by Lily*

**Physcis**

An object slides without friction in a bowl shaped like a hemisphere. It is released from rest at one edge of the bowl, slides up the other side before stopping right on the edge of the bowl. During which part of this process is the power being delivered by the gravitational ...
*June 22, 2011 by Casey*

**Algebra 1.**

Factor: 50r^8 – 32r^2 The caret symbol represents a power. 2r^2(25r^6+16)= 2r2(25r6+16) DrBob222 forgot a minus sign: 50r^8 – 32r^2 = 2r^2(25r^6 - 16) Then, inside the brackets, you see a difference of two squares: 25r^6 - 16 = X^2 - Y^2 with X = 5 r^3 and Y = 4 You can then ...
*January 9, 2007 by Elton*

**algebra**

The width of a rectangle is three fourths the length. The perimeter of the rectangle becomes 50 cm when the length and the width are each increased by 2cm. Find the length and the width. Draw a diagram and convince yourself that the perimeter P=2(L+W) We're told that W=(3/4)L...
*September 19, 2006 by summer*

**functions math**

hi can any one please help me solve this question? logbase2x+logbase2 3= 3 i factored the left side but i have no idea what to do with the right side.
*December 12, 2007 by mike*

**geometry**

an isosceles triangle on the coordinate plane has side lengths of 8,5,and 5 units. The long side is along the x-acis, find the coordinates of each vertex.
*February 3, 2012 by Anonymous*

**physics**

Determine the force required through A for the system to remain in static equilibrium in the horizontal (not moving side to side). The forces at B and C are 40 N and 90 N, respectively
*February 12, 2012 by Anonymous*

**maths**

The measure of one side of a triangular field is 4.2 m .if the difference of the lengths of hypotenuse and the other side is 14 m , find the sides of the triangle and its area?
*June 4, 2013 by pujita*

**Physics**

A 74.1 kg climber is using a rope to cross between two peaks of a mountain as shown in the figure below. He pauses to rest near the right peak. Assume that the right side rope and the left side rope make angles of 48.0° and 11.16° with respect to the horizontal respectively. ...
*October 15, 2012 by LS*

**Algebra**

How do you know if a value is a solution for an inequality? How is this different from determining if a value is a solution to an equation? If you replace the equal sign of an equation and put an inequality sign in its place, is there ever a time when the same value will be a ...
*April 15, 2008 by will*

**math problem**

In DABC, what could the 7 shown in the ratio sin A = 7/9 represent? A) the length of the adjacent side of angle B B) the length of the opposite side of angle A C) the length of the hypotenuse of a right triangle D) the length of the adjacent side of angle A I did this as an ...
*May 27, 2014 by danielle*

**CHEM HELP ASAP!**

As a solid, Ag adopts a face-centered cubic unit cell. How many unit cells are present per cubic centimeter of Ag?
*September 27, 2012 by Jordan*

**math**

the base of an isosceles triangle i 5 and its perimeter is 1. the base of a similar isosceles triangle is 10. what is the perimeter of the larger triangle? 1 15 2 21 3 22 4 110
*May 7, 2009 by Anonymous*

**calculus**

A Norman window has the shape of a rectangle surmounted by a semicircle. If the perimeter of the window is 30ft, find the dimensions of the window so that the greatest possible amount of light is admitted. I keep screwing up in creating my equation. p = perimeter of window l...
*November 20, 2011 by Daniel*

**physics**

A diffraction grating is calibrated by using the 546.1 nm line of mercury vapor. The first-order maximum is found at an angle of 17.62 degrees. Calculate the number of lines per centimeter on this grating.
*April 12, 2012 by Victoria*

**PRE-CALC**

Determine the name of the following triangle using the given points: A(5,6), B(-1,-2) and C(-3,2). Be as specific as possible. I used the distance formula and found that AB had a side of 10 BC had a side of 2 sqrt 5 CA had a side of 4 Sqrt 5 I found that since all sides are ...
*September 20, 2009 by MUFFY*