The answer is 2 hours because from 5 to 7 the temperature was raising <span />
36.89 total divided by the 8.6 gallons he bought = 4.2 so the price per gallon would be $4.20
Answer:
7z^3+6z^2-27z+22
Step-by-step explanation:
The given question is of subtraction:
So,
(7z^3+42z^2-15z+1)- (36z^2+12z-21)
=7z^3+42z^2-15z+1-36z^2-12z+21
Combining alike terms to simplify
=7z^3+42z^2-36z^2-15z-12z+1+21
=7z^3+6z^2-27z+22
So the answer in simplified form is:
7z^3+6z^2-27z+22 ..
The answer is A) -14 + 4i. God bless!
