.85x=10.2
your answer is x = 12
Answer:
A. -16x²+64x+8
B. 72 ft.
Step-by-step explanation: A. Expand the perfect square binomial -16(x²-4x+4)+72, dist. -16 (-16x²+64x-64+72), then combine like terms (-16x²+64x+8)
B. Find the abs. max. by looking back at the vertex form. The max is (2,72). Use the y-value for the height.
B. Sandwich costs $7.70 and the soda costs $2.20
Your final answer is going to be 4r + 3r ^2 +7
