How do you find the product of
-1/5(-2 1/4)

The answer is 9/20

Step-by-step explanation:

So first you gotta convert any mixed numbers into improper fractions

You muipltiy the denominator by the whole number then add that to your numerator, the denomniator stays the same.

so if you follow that it would look like this now

-1/5 (-9/4)

Since we’re multiplying by 2 negatives with each other, its gonna be positive. Multiply it normally from left to right for both the numerator and the denominator

9/20

answer: .64

step-by-step explanation

set up the formula for standard deviation for this set of numbers, then simplify