<span>2(30)+2x=860
This is because the 4 sides of the rectangle add up to the perimeter.
The unknown side is x, and there are two of those, and there are also two sides of 30.
They all add up to the perimeter.
So:
2(30) + 2x = 860</span>
39. 8 -0.7 are multiplied together so the answer is
(-0.7)^8
= 0.05765 to nearest 100 thousandth. ( using a calculator).
40. 10^4 + 0^12 = 10,000 + 0
= 10,000
Answer: A sum
Step-by-step explanation: The result of adding two or more numbers together is a sum.
Multiply then add and then subtract
Answer:
28,099.31-x= 11,135.21 => x=28,099.31 - 11,135.21 = 16964.1
Step-by-step explanation: