Sunday

December 11, 2016
Total # Posts: 49

**math**

The daily electricity bill of a car manufacturing company can be modeled by the function C(x) = 800 – 10x + 0.25x^2, where C is the daily electricity bill, and x is the number of cars made each day. How many cars should the company make to pay the lowest amount for ...

*December 7, 2016*

**math**

Thank's for helping me.

*December 7, 2016*

**math**

The height above water level of a curved arch for a bridge can be modeled by h(x) = -0.009x^2 + 1.08x ? 0.4, where x is the distancein feet from the point where the left leg of the arch is planted in the ground. A boat traveling under the arch is 26.5 feet tall. What is the ...

*December 7, 2016*

**math**

The area of a square garden is represented by the quadratic expression 9x^2 - 12x + 4. The length of one side of the square garden is 91 inches. What is the value of x ? Hint: Since the garden is in the shape of a square, the expression 9x^2 - 12x + 4 is the product of two ...

*November 29, 2016*

**math**

The area of a square garden is represented by the quadratic expression 9x2 - 12x + 4. The length of one side of the square garden is 91 inches. What is the value of x ? Hint: Since the garden is in the shape of a square, the expression 9x2 - 12x + 4 is the product of two ...

*November 28, 2016*

**physics**

how bout you just give me the answer

*September 19, 2016*

**Math**

In class 3 there are 30 pupils. There are 20 girls and 10 boys. A.What fraction of the pupils are girls? B. What fraction of the pupils are boys?

*September 18, 2016*

**Math**

No. Im not understanding what to do with the 3 numbers or how u got them.?

*July 25, 2016*

**Math**

Im. Sorry but I still don't get it?

*July 25, 2016*

**Math**

A cyclist rides his bike at a speed of 27 miles per hour. What is this speed in feet per second? How many feet will the cyclist travel in 15 seconds? In your computations, use the fact that 1 mile is equal to 5280 feet. Do not round your answers.

*July 25, 2016*

**Math**

Write a story problem to represent 6 divide 1/5

*May 18, 2016*

**Algebra**

No. My little sister needed your help too.

*May 5, 2016*

**Algebra**

How would you solve y=2x+3 and y=2x-2 using elimination method. This is a no solution problem.

*May 5, 2016*

**Algebra**

I understand. What would be the independent variable and dependent variable? Could you give me a real world situation to explain it.

*May 5, 2016*

**Algebra**

--------------MP3------NO MP3---TOTAL CELL PHONE-----57--------122------?? NO Cell Phone--30---------65------?? Total --------- ??---------?? ----?? Answer all "5 question marks." The same students responded to both questions. Complete the two-way frequency table to ...

*April 6, 2016*

**math**

a cone has a height of 6.if the volume of the cone is 24xpi, what is the radius of the cone?

*April 5, 2016*

**Algebra**

You're right it should of read 3x=y=-1. Y is equal to -5/11. Please give a step by step to get -5/11 answer.i'm stuck on the fraction part.Thank you.

*March 22, 2016*

**Algebra**

I'm bother by the fraction.

*March 21, 2016*

**Algebra**

Yes. @reiny

*March 21, 2016*

**Algebra**

I'm kind of confused on the problem in point slope form. Please show me step-by-step. Thank you. y-18.5=3.2/3(x-1)

*March 21, 2016*

**Algebra**

The 15th and 21st terms of an arithmetic sequence are -67 and -97. What is the 30th term? This is all I can figure out? -97- (-24)= -30 common difference. HELP!

*January 18, 2016*

**Math**

Please solve 4-6x GREATER THAN -15 + 1. I believe the answer is x LESS THAN 3. Is this correct?

*September 19, 2015*

**math**

solve 7/10 d = 21/20

*July 26, 2015*

**math**

A scale model of a rectangular building lot measures 7 feet by 5 feet. If the actual house will be built using a scale factor of 12, what is the area of the actual building lot?

*July 20, 2015*

**Math**

6x + 2 for x = 3

*July 18, 2015*

**physics**

A merry-go-round rotates at the rate of 0.16 rad/s with a(n) 43.0 kg man standing at a point 2.4 m from the axis of rotation. What is the new angular speed when the man walks to a point 0.64 m from the center? Assume that the merry-go-round is a solid 5.99 ×102 kg ...

*March 30, 2015*

**math**

Julie's birthday is May 1. She wants to buy a new camera that costs $70. She decides to save 1 cent on Jan. 1, 2 cents on Jan. 2. 3 cents on Jan. 3 and so on. Will she have enough to buy the camera on her birthday?

*March 12, 2015*

**Math**

2+2

*January 28, 2015*

**Math**

What Tim

*January 28, 2015*

**math**

Jackie wants to buy a new CD player. It costs $ 32.95. She has saved $ 26 and has a coupon for 30 % off the price. Does Jackie have enough money to buy the CD player?

*August 25, 2014*

**math**

it says a inspector found flaws in 13 out of 150 sweaters. find the probability that a sweater has a flaw. round to the nearest tenth of a percent

*March 11, 2014*

**Physics**

A ball of mass 0.3 kg, initially at rest, is projected from ground level toward a wall that is 27.0 m away. The ball's velocity the moment it is projected is 75.0 m/s at 60° relative to the horizontal, and the wall is 11.0 m high. During its flight, the ball impacts ...

*March 7, 2013*

**Science**

i need to unscramble a phrase about Plate Tectonics with these letters: rorpsfgnlsadeeasi

*February 26, 2013*

**Spelling**

v/cv pattern

*February 3, 2013*

**algebra**

the function c= p+0.07p relates the price of an item to its cost. If you have $12.50 to spend, what is the cost of the most expensive item that you can buy?

*November 16, 2011*

**algebra**

What is the check of 40/5=8

*December 8, 2010*

**math**

I don't understand how to make this into a story

*December 6, 2010*

**Science**

I am doing a science fair project could you tell me some information on paper towels?

*January 19, 2010*

**maths**

40 more than 454 is 494 hope I helped.

*January 19, 2010*

**child**

By modeling good social behavior and reassuring them

*January 19, 2010*

**math**

the sum of two decimal numbers is 5.3. their difference is 1.7 and there product is 6.3 what are the two numbers?

*December 13, 2009*

**science grade 9**

That is a good answer, but it does seem too simple to me. But maybe it really is a simple question. I might just add that when plants use CO2 they produce sugars and oxygen. And since oxygen is abundant in the atmosphere then perhaps the concentration of oxygen remains ...

*November 26, 2009*

**science grade 9**

If humans and all other animals are constantly producing carbon dioxide, and is a very stable gas, why does it make up only a tiny percentage of the earths atmosphere?

*November 26, 2009*

**ss**

How did the two compromises reached during the Constitutional Convention satisfy competing groups?

*November 17, 2009*

**9th grade**

(x+4)^5

*October 14, 2009*

**8th grade**

rust is to iron as ___ is to silver

*October 30, 2008*

**algebra**

Graphing Linear equations. How do I graph y=-4x+3

*August 17, 2008*

**math**

9,76.8

*December 3, 2007*

**Chemistry (Check)**

true

*January 13, 2007*

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