Answer:
b2 = 10
Step-by-step explanation:
You want to find the second base using the formula for the area of a trapezoid and other values given.
Setup
Fill in the given values to get a 2-step linear equation in b2.
A = 1/2h(b1 +b2)
136 = 1/2·16(7 +b2)
136 = 8(7 +b2) . . . . . . . . a 2-step linear equation in b2
Solution
Step 1 is to divide by the multiplier outside parentheses.
136/8 = 7 +b2
17 = 7 +b2
Step 2 is to subtract the constant.
17 -7 = 7 +b2 -7
10 = b2
The value of b2 is 10.
