Let "what" and "what" be A and B
Put this in an algebraic equation
A * B = 21
A + B = -22
A must = -21 and B must = -1 , this is because two negatives multiply to make a positive
A + B = -22 , -21 +-1 = -22
Answer:
90 degrees
Step-by-step explanation:
if The protractor were on the line I’d be able to see if it’s accurately 90
You can factor -80 as

So, we have

The square root of a product is the product of the square roots:

Since
and
, we have

1 is in the 'Ten Thousand's' place.