Multiply. −2
1
2•3
3
4
−2
1
2•3
3
4=nothing (Type an integer, proper fraction, or mixed number.)

The mean of a set of data is -3.82 and its standard deviation is 2.31. find the z score for a value of 3.99.

If given an equation of a line such as -1/2x+6 how would you create an equation of a line parallel and perpendicula to this line that goes through another point such as (4,10)

The volume of a sphere is increased by 6%. calculate the corresponding percentage increased in it area.