Sunday

May 29, 2016
Total # Posts: 123

**Calc**

Air is being pumped into a spherical balloon so that its volume increases at a rate of 90{cm}^3/s. How fast is the surface area of the balloon increasing when its radius is 7{cm}? Recall that a ball of radius r has volume \displaystyle V={4}/{3}pie r^3 and surface area S=4\pi r^2
*March 15, 2009*

**math**

explain how you know that 5.5 is to the right of 5 1/4 on the number line
*February 25, 2009*

**math riddle ALGEBRA WITH PIZZAZZ**

Oh-Lay
*September 14, 2008*

**Math!**

A rectangle is 15cm x 12cm. If the length is reduced by R cm and its width is increased by R cm. Its area is reduced by 4cm^2.
*August 23, 2008*

**business**

What are the benefits associated with quality awards!? please could someone help me! cheers!
*January 28, 2008*

**science**

how much water does the usa use yearly
*October 1, 2007*

**math**

x^3-6x^2>0 answer in interval notation
*September 26, 2007*

**math**

x^3-6x^2>0 anser in interval notation
*September 26, 2007*

**math**

x^3-6x^2>0 anser in interval notation
*September 26, 2007*

**algeb collage**

solve the inequality,express using interval notation x3-5x2-14x>0
*September 26, 2007*

**economics...please help!**

right must have a price for a demand curve.
*September 26, 2007*

**matttth!**

y=x-10
*September 25, 2007*

**Math**

Im not one of those experts doing this, but don't you have a calculator? Anyways there are sites that help: w w w. quickmath . c o m (no spaces) Sometimes I goof on simple algebra problems and I use their equation solver to fix mistakes, etc.... use it and plug in your ...
*August 27, 2007*

**Math**

and yes your answer is correct.
*August 27, 2007*

**Math**

its just like basic algebra if you were to take x^2/x what would you get? just x ^__^
*August 27, 2007*

**Math**

Eh, this is just a term of speech to denote different times. For instance, an hour is 60 minutes right? Well, if you broke it into 4 quarters it would be 15 mins each, so when someone says its "Quarter to", that means its 15 minutes away from being that hour. Example...
*August 27, 2007*

**math**

good lord, use google and be self reliant.......
*August 26, 2007*

**english**

^^^^^^^^^^^^^^^^^^^^^^^^^^ She should have wrote: "No, judges should not be....... MISTAKE PWEnd
*August 26, 2007*

**math**

write the following as a rate in lowest terms $402 for 18 rolls of film To find the rate for one roll of film, divide $402 by 18.
*August 21, 2007*

**math**

it is cross math (like sudouk) six rows across and six rows down 1st row has empty box, +, empty box, + box =6 this row is across 2nd row has x blacked out box, +, blacked out box, x, blacked out box this row is across 3rd row across is empty box, +, empty box,/ (division sign...
*March 12, 2007*

**6th grade math**

I still do not understand this problem? find a number such that when added to the numerator and denominator of 2/11 yields a fraction equivalent to 1/2? thanks If you add 7 to the numerator and 7 to the denominator you get 9/18. 9/18= 9x1/9x2 = 1/2 It means add the same number...
*March 8, 2007*

**matn**

need help with word problem? half add it Find a number such that when added to numerator and denominator of 2/11 yields a fraction equivalent to 1/2? thanks for any help (x+2)/(x+11) = 1/2 x is the number you want. Now do the algebra. I will be happy to check your work. thank you
*March 8, 2007*

**math**

need help with math word problems. just don't understand. What is the number? you have a four digit number where the thousands digit is four greater than the hundreds digit.The tens digit is twice the thousands digit. The ones digit is half of the thousands digit. What is ...
*March 8, 2007*