Answer:
349 is the answer.
Step-by-step explanation:
Answer:
Step-by-step explanation:
He made his first mistake in step 5. He used the statement he was trying to prove as a reason.
hope that helps
Answer:
h = (2 A)/(b_1 + b_2)
Step-by-step explanation:
Solve for h:
A = 1/2 h (b_1 + b_2)
A = 1/2 h (b_1 + b_2) is equivalent to 1/2 h (b_1 + b_2) = A:
1/2 h (b_1 + b_2) = A
Divide both sides by 1/2 (b_1 + b_2):
Answer: h = (2 A)/(b_1 + b_2)