Answer:
C
Step-by-step explanation:
The exponent is negative so you put the number under 1 with the exponent positive
<span>x + 3y = 9
-x + y = -1
X = 3
Y = 2
</span>
Answer:
7(2+9)
It says the sum of 2 and 9 so I added them both together. It says product so I multiplied 7 to the sum of 2 and 9.
You are finding the perimeter, which has double of each side length given.
Note: P = perimeter
2(5x - 1) + 2(2x + 1) = P
Distribute 2 to each monomial in the given parenthesis
2(5x - 1) = 10x - 2
2(2x + 1) = 4x + 2
10x - 2 + 4x + 2 = P
combine like terms.
P = 10x + 4x - 2 + 2
P = 14x
C) 14x, is your answer
hope this helps
