Factor the polynomial.x2 + 8xy + 16y2
A. (x - 4y)2
B. (x + 4)2
C. (x - 4y)(x + 4y)
D. (x + 4y)2
Answer: D
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Solve the problem.A rectangular swimming pool is being constructed, 18 feet long and 100 feet wide. The depth of the pool is measured at 3-foot intervals across the length of the pool. Estimate the volume of water in the pool using the Trapezoidal Rule.
A. 14,400 ft3 B. 8,200 ft3 C. 12,300 ft3 D. 10,900 ft3
Find the average value of the function over the given interval.y = 2 - x2; [-1, 2]
A. - 
B. 1
C. - 
D. 
Solve the problem.A block hanging from a spring is free to oscillate. If a block attached to the spring is given a downward velocity 
from a 
above its resting position, then at any time t in seconds its position in meters is given by 
Find the maximum distance that the block travels from its resting position. Give your answer in exact form.
A. 0.74 m
B. 
m
C. 1.48 m
D. 2
m
Solve the problem.The half-life of plutonium-234 is 9 hours. If 100 milligrams is present now, how much will be present in 4 days? (Round your answer to three decimal places.)
A. 47.742 B. 4.592 C. 73.486 D. 0.062