Use the distributive property to remove parentheses and write the product as a sum. Simplify if possible.-(-4m + 8n - 8)
A. -4m + 8n - 8
B. 4m - 8n - 8
C. 4m - 8n + 8
D. -4m + 8n + 8
Answer: C
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Determine whether the polynomial is a perfect square trinomial, a difference of squares, or neither.16x2 - 80x + 100
A. Difference of squares B. Perfect square trinomial C. Neither
Perform the indicated operations. If possible, reduce the answer to its lowest terms.
÷ 
A. 
B. 
C. 
D. 
Solve the problem.The temperature of water in a certain lake on a day in October can be determined by using the model 
where x is the number of feet down from the surface of the lake and y is the Celsius temperature of the water at that depth. Based on this model, how deep in the lake is the water 8 degrees? Round to the nearest foot.
A. 69 ft B. 13 ft C. 43 ft D. 32 ft
Find absolute maximum and minimum values of the function, if they exist, over the indicated interval. Where no interval is specified, use the real line. List your answers in terms of ordered pairs.
