What is the standard deviation of the following data set rounded to the nearest tenth?

534,524,539,530,537,522

A. 6.3

B. 6.4

C. 40

D. 41

Which expressions are equivalent to 2 (4x + 2y) ? Mark all that apply. A 4 (2x + y) B 8x + 4y C 22 (4 + 2y) D 8x + 2y

Multiply the equation (y+5) ^3

Is X=-2 a solution of inequation 2x+1> X-3? why?

David must install fencing around a lot that is shaped like a right angle. the side of lot that runs east-west is 200 ft long. the side of the lot runs north-south is 125 ft long.

Here is a sequence of numbers: 64,49,36,25,16. What is the name given to these numbers

Find the 72nd term of the arithmetic sequence 11, 7, 3, ...

A runner runs a distance of 280 metres in a time of 40 seconds. What is his average speed?

Estimating perfect squares

What is 8*4 equal to

Dave is making a recipe for soup that includes 12 cups of water and 3 cups of broth. how many times as much water as broth will be in the soup?