06/18/15

Having trouble with 2 questions can you walk me through both? do you just square the radicals?   solve   √4x-2 = √2x+6   and...   √2x-1    +2  = √x+2    +3   Thanks!

06/17/15

06/17/15

#### story problem

The area of a circle with radius r is given by the formula A=π r2  . If a circle has area 169π square inches, what is the radius?

06/17/15

#### solve please and thanks math f

solve (2x+3)/(x+5)   +  (1)/(2)   =   (7)/(2x+10)

06/17/15

06/17/15

#### story problem

The formula a=p(1+r)^2 gives the amount A is dollars that P dollars wil grow to in 2 years at interest rate R (where r is given as a decimal), using compound interest. What interest rate will cause... more

06/17/15

A web music store offers two versions of a popular song. The size of the standard version is 2.5 megabytes (MB). The size of the high-quality version is 4.9 MB. Yesterday, there were 710 downloads... more

06/17/15

#### How do you know when 30 minutes is up?

You have exactly 30 minutes to get out of a room. All you have is a 9 minute hour glass and a 13  minute hour glass to count off exactly 30 minutes.

06/17/15

#### Six times the diffrence of a number and 2 is equal to 9

I need help with this problem it's really bothering me

06/17/15

#### How do you write this in Summation Notation, 2+6+11+17+24?

I need it for our statistic assignment, please. Thank you

06/17/15

#### Probability!

4. In the old days, slot machines worked like this: you pull the lever to spin three wheels; each wheel has 20 symbols, all equally likely to show when the wheel stops spinning. The three wheels... more

06/17/15

#### A ladder is leaning against a building so that the distance from the ground to the top of the ladder is 3 feet less than the length of the ladder.

find the length of the ladder if the distance from the bottom of the ladder to the building is 9 feet.

06/17/15

#### How do you do x squared plus 10

I do not know how to do it ??????????

06/17/15

#### .Which shape of play space provides for a more efficient use of fencing, a square or an equilateral triangle?

the formula for the triangle is 1/2(s)(3 (square rooted)/2(s). The perimeter of an equilateral triangle is 3s.

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