Thursday

July 31, 2014

July 31, 2014

Number of results: 17,290

**biology**

Explain how the Punnett Square is related to probabilities, and describe what different regions of a Punnett Square represent
*December 12, 2013 by Temmick*

**Math**

Add a term to b^2 - 4/5b to make the expression a perfect square. Write the results as the square of a bracketed expression.
*July 7, 2014 by Christopher*

**Science... plz help~!**

A basketball momentarily changes shape as it bounces off the floor. This is due to balanced forces acting on the ball. (1 point) True*** False A ball slowing down as it rolls across a carpet is an example of (1 point) Balanced force Friction*** Inertia Zero net force If the ...
*March 4, 2014 by Anonymous*

**Trig........**

I need to prove that the following is true. Thanks (cosx / 1-sinx ) = ( 1+sinx / cosx ) I recall this question causing all kinds of problems when I was still teaching. it requires a little "trick" L.S. =cosx/(1-sinx) multiply top and bottom by 1+sinx, (creating the difference ...
*April 18, 2007 by abdo*

**factoring cubes**

how to factor x^3-27 well since 27 is a perfect cube and so is x^3 wouldn't the answer be x-3? no, its something like (2x-3)(?x^2+?X+?) i dont know how to figure all the parts out. Here's the format for the difference between two cubes: (a - b)(a^2 + ba + b^2) = a^3 - b^3. ...
*January 18, 2007 by Linds*

**What does this Maths B question mean?**

How do I do thi question? An example of a wine glass design, using three equations, is given below. The base of the wine glass is defined by a quadratic equation, the stem by a linear equation and the body of the glass by a square root function. The difficult part of the task(...
*July 28, 2012 by Nina*

**Computer Sci Help pls**

Write a Class to represent one of the following items. Note that each class must a proper constructor even though the constructor is not explicitly named. 2. Student that has a name, point and course count. The class should have methods that can: (a) add a grade to the GPA and...
*May 29, 2010 by Sarah N*

**math please**

what exactly is a prime factor would x-5 x+5 and x2+25 all be prime factors of x4-625? Yes, I believe those would be the prime factors. x^4 - 625 can be factored into (x^2 -25)(x^2 + 25) and once again into (x-5)(x+5)(x^2 + 25) That is what you have done. Any additional ...
*November 30, 2006 by anonymous*

**Calculus **

I seriously do not understand anything about this problem Please help. The equation of an ellipse centered at the origin is (x^2/a^2) + (y^2/b^2)=1 The area of the upper half of the ellipse can be determined by finding the area between the ellipse and the x-axis (y=O). The ...
*November 8, 2011 by Angel*

**Algebra**

4. A shipping crate has a square base with sides of length x feet, and it is half as tall as it is wide. If the material for the bottom and sides of the box costs $2.00 per square foot and the material for the top costs $1.50 per square foot, express the total cost of material...
*September 23, 2013 by Ariff*

**Operation**

Parsa Real Estate is a company that buys and rents real estate. The company is looking into buying an office building for $1M.Thebuilding has 10,000 square feet of rentable office space. The company analysts predict that they can rent the office space for $6 per square foot ...
*October 28, 2013 by Nilu*

**Chemistry**

I need someone to check these True or False questions for me please: 3. Dissolving salt in water is a physical change- F 14. Burning newspaper is a physical change- F 19. The liter is a measure of volume- T 20. The amount of heat and temperature of a substance are the same- F ...
*October 19, 2010 by mysterychicken*

**Pre-Calculus**

Composition of Functions f o g(x)=f(g(x)) --> I know that this is eqivalent to f(g(x)) Given f(x) = 2x+1, and g(X) = 3x+1 find:f o g(x)=f(g(x)) This is what I did, but I don't think Ive solved it correctly f(g(x)) = f(x-3) f(x-3) = 1(x-3)-3x+2 =x-3-3x+2 f(g(x)) = -2x-1 The ...
*September 27, 2012 by Shreya*

**calculus-optimazation**

The sum of the perimeters of an equliateral triangle and square is 10. Find the dimensions of the triangle and square that produce a minimum total area.
*February 25, 2009 by meghan*

**Precalc**

use completing the square to describe the graph of each function. How do you complete the square with this equations. please show me step by step so that I can understand it. x^2-4x+6
*October 27, 2011 by Amy*

**math**

the area of a square is 49 square inches. find the number of inches in the length of a diaganol. express your answer in simplest radical form.
*March 9, 2012 by pedro*

**math**

MRS.O'DELL MADE THIS DIAGRAM OF HER BACKYARD. ( 7 squares across and 5 down) if each square represents 1 square yard, what is the area of her backyard?
*March 26, 2012 by EBONY *

**math**

If the area of the grass, before removing the innermost track lanes, is approximately 9615 square meters, how many square kilometers of grass are there?
*March 26, 2012 by nika*

**geometry**

The surface area of the following square pyramid is 152 cm2. What is the slant height, l, of the square pyramid in centimeters? The base is 8cm.
*April 22, 2012 by Anonymous*

**Math**

Rose has a square garden with an area of 49 square feet. She wants to put a fence around her garden. How much fencing does she need to purchase?
*October 12, 2013 by Brad*

**Psychology**

Can you give a real world example of when you would use a chi-square test of independence and a chi-square goodness of fit?
*June 8, 2014 by Sophia*

**Math help please**

Find the area and the circumference of a four leaf clover with the square length to be 6 cm This is a square in the center with 4 semicircles "glued" to the sides. Use Pi = 3.14 and ROUND your answers to the nearest WHOLE unit)
*May 22, 2008 by MIKE*

**Precalculus**

I hope that the back of the book is wrong the back of the book tells me that the answer is - SQRT(5)/5 I get positive square root( 5) divided by 5 can you tell me if the answer is positive or negative if it is negative can you please explain why? Thanks! tan (theta) = 4/3, pi...
*February 7, 2010 by Kate*

**Economics/Math**

In a perfectly competitive industry, the market price is $25. A firm is currently producing 10,000 units of output, its average total cost is $28, its marginal cost is $20, and its average variable cost is $20. Given these facts, explain whether the following statements are ...
*November 3, 2009 by cb*

**Math**

A square has an area of 27 square units. If the perimeter of the square is equal to the perimeter of an equilateral triangle, find the area of the equilateral triangle.
*August 12, 2013 by Arch*

**math**

This pattern represents the SQUARE NUMBERS: 1,4,9,16,25,36...draw a picture or diagram to explain SQUARE NUMBERS.
*October 25, 2010 by Jeff*

**geometry**

If the area of a square is 100 cm. What is the area of each triangle produced if you draw two diagonals in the square?
*February 23, 2011 by Michele*

**geometry**

have an area of 11 square centimeters. I am made up of whole square centimeters. My length is 4 cm. I am not a rectangle. What am l?
*May 19, 2011 by Trey*

**maths**

use square nombers to determine at least 3 pattern for the first five square nombers.
*November 9, 2011 by kell kell*

**functions**

a square has an area of 100 cm^2. how much bigger is the square's circumscribed circle than the inscribed circle?
*May 8, 2012 by celina*

**math**

M and N are the midpoints of the sides of a square. What is the ratio of the area of triangle AMN to the area of the complete square?
*May 18, 2012 by alandra*

**Math**

The area of a square is 16cmsq. Find the area of the square joining the mid pt. Of its side. Gv me sltn
*September 12, 2012 by Simran kaur*

**math**

how do you square a squared square?
*May 3, 2009 by joe jonas*

**Math Urgent**

(square rt. 5) +(square rt. 20)=
*January 24, 2011 by Anonymous*

**Geometry**

These two segments (DG and EH) should come out to be of equal distance. The coordinates of D are (-2h, 0) and G are (h,k). Using the distance formula I got the distance of DG to be the square root of 3h squared + k squared. Using the distance formula I got the distance of EH ...
*February 3, 2009 by Anonymous*

**geometry**

These two segments (DG and EH) should come out to be of equal distance. The coordinates of D are (-2h, 0) and G are (h,k). Using the distance formula I got the distance of DG to be the square root of 3h squared + k squared. Using the distance formula I got the distance of EH ...
*February 3, 2009 by Anonymous*

**physics**

Consider the following statement: “When a rifle is fired horizontally, the bullet leaves the barrel and doesn’t drop at all for the first 45 meters of flight.” Is this statement true? Wouldn't this statement not be true because you don't know the initial position
*October 5, 2010 by jon*

**Math Homework**

1) Given the side of a square pyramid is 6cm and the altitude is 4cm calculate the surface area. 2) Given the side of a square pyramid is 12cm and the altitude is 8cm calculate the surface area. 3) Given the side of a square pyramid is 18cm and the altitude is 12cm calculate ...
*February 6, 2007 by Student*

**english**

I had to correct the following fragment sentence error. Please advice if they are correct. Thank you in advance for your help. 1. It is true that the first drive-in theaters opened in New Jersey in 1933, which was in the middle of the Great Depression when money was scarce. 2...
*April 28, 2011 by Amor*

**programming - JavaScript**

/*Hello, I really hope someone can help me out with this function. I'm a newbie to JavaScript. I have included the instructions for the swapFE() function that I have to complete below along with the functions that I have done so far. I need to create a swap function. The ...
*February 16, 2011 by Suzie-Q*

**Physics**

Two adjacent corners of a square have charges q1 = +1.5 x 10-9 C and q2 = +4.0 x 10-9 C. The length of a side of the square L = 0.25 m. Find the EPE of a charge q3= -6.0 x 10-9 C placed at the 2 remaining corners.
*July 10, 2008 by K*

**algebra**

I am confused on how to determine if an equation/expression is a trinomial square. For example c^2(squared)-18c+81. I know that this is a trinomial square but I don't know why. Could someone please help me understand better
*January 7, 2010 by Sam*

**MATH**

Hello I have to draw a pentagon with 30 square units on graph paper. My question is how can I get 30 square units if the slanted sides are not full squares?
*February 7, 2010 by joe*

**math**

the diagram shows a square xyrz of side 15m with an inscribed circle centre o.calculate the area of the square, circle and the shaded region
*October 21, 2010 by tia*

**algebra**

1.the square og 2 is the same as two times the difference of g and 10. 2. the product of 3 and the square of g equals the sum of thirty and the product of nine and g. i really need help on this i dont get it. thanks
*September 26, 2011 by kathy*

**math**

a sphere has a volume of 500/3pi cubvic centimeters. What is the total surface area, in square centimeters, of the square? The answer is 100pi, but i dont know why. HELP!!!!!!!!!
*October 14, 2011 by robby*

**Algebra 2**

Find the value of c that makes the expression a perfect square trinomial. Then write the expression as the square of a binomial. I didn't really understand what that meant. x^2-23x+c x^2-(2/7)x+c
*December 5, 2011 by Erica*

**math**

A recreation room has the following dimensions. Carpeting will cost $1.50 per square foot. How many square feet of carpet will be needed and how much will it cost?15 ft, 33 ft, 12 ft, 12 ft.
*June 26, 2012 by mary*

**algebra 1**

mindy is building a patio that is in a shape of a square. this will cover 56 square yards. find the length of a side of the patio to the nearest tenth of a yard ?
*September 8, 2012 by Anonymous*

**Pre-Cal**

Christian is solving the equation x2 – 12x = 4 by completing the square. What number must be added to both sides of the equation to complete the square?
*October 26, 2012 by Anonymous*

**calculus-max & min**

an open box with a square base is to be constructed from 48 square inches of material. What dimensions will produce a box with maximum volume?
*January 31, 2013 by Pat*

**Geometry**

Let G be a rectangular grid of unit squares with 3 rows and 8 columns. How many self-avoiding walks are there from the bottom left square of G to the top left square of G?
*March 6, 2013 by John*

**Newtons square meters**

What's the pressure exerted by a 150 newton person standing on an area converted by the persons shoes of 0.20 square meters? Help please
*July 5, 2013 by Areli*

**math algebra**

a square parking lot has a surface area of (w^4-2w^2x+x^2) square feet. Factor this trinomial to find the length of one side in feet.
*March 19, 2014 by carl*

**world history**

the medes were allies of the assyrians. true/flase the assyrians created bidges to cross deep water. true/flase
*October 23, 2007 by ebenezer*

**math**

1.Explain why there is no number that can replace N to make the equation |n| = -1 true. 2. List the integers that can replace N to make the statement -|8| < n < -|-5| true. I don't really get what am I supposed to do?
*November 6, 2009 by lily*

**calculus**

A closed cardboard box is made with a square top and bottom, and a square horizontal shelf inside that divides the interior in half. A total of 12 square meters of cardboard is used to make the top, sides, bottom, and shelf of the box. What should the dimensions of the box be ...
*November 15, 2013 by h*

**algebra**

1.Find the domain of the function. Make sure answer is in interval notation. g(x)=7x/x^2-4 2.Find the domain of the function. Make sure answer is in interval notation. f(x)=5x square root of x-2
*May 22, 2013 by Sharday*

**mat117/algebra**

If the sides of a square are increased by 3 cm, the area is decreased by 36 cm^2. What were the dimensions of the original square? Please show me the formula and how to work. That doesn't sound possible. If the sides of a square are increased, the area must also be increased. ...
*June 27, 2007 by Diana*

**Math**

Okay so I'm trying to work out how many mm of rain fell in a certain area. I've got the total volume/capacity that fell (3.51125KL) and the total area that it fell in (8558.25m). My formula is Total Rainfall = rainfall mm x area covered How would I make sure that all the ...
*April 23, 2011 by Tatiana*

**calculus**

a fence 8 ft tall stands on level ground and runs parallel to a tall building. if the fence is 1 ft from the building, find the length of the shortest ladder that will extend from the ground over the fence to the wall of the building. (hint #1: if L represents the length of ...
*November 17, 2011 by robert*

**AXIA UOP**

ANY OF THIS LOOK FAMILIAR? Compare and contrast your participant’s answers with your own, and write a 350- to 500-word summary that answers all of the following questions: How are your table answers similar? How are they different? Do either tables list descriptors in the Both...
*September 2, 2007 by phkurt*

**Calculus**

A holding pen for fish is to be made in the form of a rectangular solid with a square base and open top. The base will be slate that costs $4 per square foot and the sides will be glass that costs $5 per square foot. If the volume of the tank must be 50 cubic feet, what ...
*February 17, 2014 by Ann*

**Physics (verification)**

I would love for someone to please verify my solution for this problem: A former amusement park attraction consisted of a huge vertical cylinder rotating rapidly around its axis. The rotation speed should be sufficient for the people found inside to be stuck to the wall when ...
*December 9, 2011 by Greg*

**Physics (verification)2**

I would love for someone to please verify my solution for this problem: A former amusement park attraction consisted of a huge vertical cylinder rotating rapidly around its axis. The rotation speed should be sufficient for the people found inside to be stuck to the wall when ...
*December 10, 2011 by Greg*

**MATH**

True or False? 1.) A segment has exactly one perpendicular bisector. 2.) A line has exactly one perpendicular bisector. 3.)Given a line and a point not on the line, there is exactly one line perpendicular to the original line that passes through the given point.
*July 2, 2009 by Yuna*

**ALGEBRA**

Find all positive values for k for which each of the following can be factored. I have 2 problems i think i got the one right but not sure the second one i have no idea where to even start 2x^3+16x^2-40x=2x(x^2+8x-20) (x-2)(x+10)=8x this one i am stumped can some one explain ...
*April 25, 2007 by TAMMY*

**Math**

Carpet plus installs carpet for $100 plus $8 per square yard of carpet. Carpet World charges $75 for installation and $10 per square yard of carpet. Find the number of square yards of carpet for which the cost including carpet and installation is the same. Please help me solve...
*February 21, 2012 by Caitlyne*

**econ**

True or false; 1.Lenders gain when inflation is higher than expected. 2. Lenders lose when inflation is higher than expected 3. real interest rates will never go negative 4. loan contracts specify the nominal interest rate. 5. if inflation is higher than the nominal interest ...
*February 10, 2014 by hannah*

**econ**

True or false; 1.Lenders gain when inflation is higher than expected. 2. Lenders lose when inflation is higher than expected 3. real interest rates will never go negative 4. loan contracts specify the nominal interest rate. 5. if inflation is higher than the nominal interest ...
*February 11, 2014 by hannah*

**biology can someone check**

Is this true or false? 1. Ideas about the value of knowledge gained through scientific research come from a society's social, ethical, and moral concerns. 2. Pure science is scientific research carried out primarily to solve specific environmental problem. 3. Technology is the...
*December 23, 2010 by joy*

**biology /check please**

Is this true or false? 1. Ideas about the value of knowledge gained through scientific research come from a society's social, ethical, and moral concerns. 2. Pure science is scientific research carried out primarily to solve specific environmental problem. 3. Technology is the...
*December 23, 2010 by joy*

**tony**

Which statement is true? A. an entrepreneur is a person who lends money to someone else to start a business. B. Most Americans are entrepreneurs. C. No Americans are entrepreneurs. D. None is true. I'm stuck between A and D.
*December 10, 2010 by social studies*

**Chemistry**

Because the mass of the reactants equal to the mass of the product of a reaction, the number of moles will be conserved. -I think this is sometime true but I don't know a way to prove that it sometime true. Anyone got an idea ? Thanks
*February 10, 2013 by Shadow*

**math**

A(square)+ 7(square)=6(Square)
*December 2, 2009 by Courtney*

**math**

1) 3x square-4x+7 2) 4x square-5x+6 3) 2x square-4x+3
*February 27, 2011 by shakira.shakira*

**algebra**

A homeowner wishes to insulate her attic with fiberglass insulation to conserve energy. The insulation comes in 40-cm wide rolls that are cut to fit between the rafters in the attic.if the roof is 7 m from peak to eave and the attic space is 3 m high at the peak, how long does...
*May 4, 2007 by allen*

**math**

The director of the center has asked you to design a garden. The director has asked you to design different sections of the garden that meet the following: Section 1 must be shaped like a square. Section 1 must have an area between 26 square feet and 50 square feet. section 2 ...
*April 13, 2014 by Steven*

**Microeconomics**

I am not sure whether these questions are true or false: 1. Surpluses of dairy products that have regulated prices usually occur because the demand is price inelastic. 2. You observe that a linear demand curve shifts to the right, this means that the price elasticity of demand...
*April 9, 2009 by Maya*

**probability & statistics**

Q: if A and B are independent events, how many of the following statements must be true? 1. A' and B are independent 2. A and B' are independent 3. A' and B' are independent is choice 3 the only one that is true?
*June 13, 2012 by Anonymous*

**vba excel**

Our teacher wanted us to set up a command button that gives 3 input boxes on city, state, and zip code. Next we are suppose to use a Boolean type and set a true or false setting depending on the zip code that's suppose to be 5 digits. Next we are to insert two message boxes ...
*October 18, 2011 by Angel*

**mat117**

Determine whetere each of the following trinomials is a perfect square. If it is, factor the trinomial. x^2 - 24x + 48 I cannot get the 24x I've tried (x-24)(x - 2) What am I doing wrong? It is not a square. THe factors are 21.797 and 2.20, approximately.
*June 26, 2007 by Diana*

**CALC**

If 1700 square centimeters of material is available to make a box with a square base and an open top, find the largest possible volume of the box.
*May 29, 2010 by Adam*

**math**

The voulme of fish tank with a square base is y^3-6y^2+9y cube inches. The hieght is Y. Find the length of a side of the square base. can some one help me please.
*June 7, 2010 by keaton*

**math**

If 507 square centimeters of material is available to make a box with a square base and an open top, find the largest possible volume of the box.
*October 28, 2010 by Anonymous*

**5th grade math**

how many square feet are needed to cover one square yard? would it be 108 sq ft also would .26 rounded to the nearest hundredth be .30
*January 17, 2011 by jill*

**algebra**

Can someone please help wright a proof for the following. given: JKLM is a square prove: MK is perpendicular to LJ the figure in front of me is a square labeled JKLM and there are diagonals JL and KM
*March 30, 2011 by Bridge*

**algebra**

Can someone please help write a proof for the following. given: JKLM is a square prove: MK is perpendicular to LJ the figure in front of me is a square labeled JKLM and there are diagonals JL and KM
*March 30, 2011 by Jim*

**math**

Taylor is planting 4 trees at the community center.She wonts to leave a 2 square foot area between each one.How many square feet does she need for the trees?
*March 20, 2012 by lynnay*

**Math**

carpet at a British home supply store sells for 16 pounds(currency)per square meter.What is the price in dollars per square yard.
*March 21, 2012 by Taylor*

**volume of square**

Find the volume of a square with base edges of 24cm and a slant height of 37cm possible choices 192cm^3 (my choice) 20,160cm^3 10,080cm^3
*May 1, 2012 by lilman*

**math**

a rectangle has the length twice the side of this square and width three units less than the side of this square. if the two areas are equal, what are the squares dimensions (w * h)?
*May 3, 2012 by Shelbee*

**Calculus -- HELP!**

If 1200 square centimeters of material is available to make a box with a square base and open top, find the largest possible volume of the box.
*October 20, 2012 by Suzy*

**Math**

this pattern represents the square numbers 1,4,9,16,25,36 diagram to explain square numbers. pls. help
*October 24, 2010 by Carol*

**Math**

What are the dimensions of a square resulting from doubling the area of a square measuring 4 feet by 4 feet
*April 27, 2011 by Maite*

**Math**

The area of square JKLM is 25 square units. How many units is the length of one of the sides?
*May 2, 2011 by MathLuv*

**Mathematics**

Calculate the side of the square base.if the diagonal of the base of a square prism is 8,49 cm and the height is 12 cm
*October 4, 2011 by Nomvuyiso*

**geometry**

167.08 square inches. I need to know the radius of a circle for that number of square inches..
*March 3, 2013 by sam*

**Spanish**

Is it True That There are two versions of why the "casa de azulejos" ended up being completely tiled on the outside. Is It Tlso True That In our own national capitol, many homes now are owned by foreign governments for their ambassadors homes and offices.
*January 22, 2011 by Needs Help*

**chem**

If the levels of mercury are the same in both sides of a u-tube, what must be true of the gas in the manometer i said: The gases in contact with the two sides of the manometer are at equal pressures. That is true.
*April 26, 2007 by mic*

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