Factor the following:
a. (3x + 6)
b. (2a2 + 3a)
c. (3x + 2ax + 4xy)
d. (4a2b2 + 6ab - 8a2b3)
a. 3(x + 2)
b. a(2a + 3)
c. x(3 + 2a + 4y)
d. 2ab(2ab - 4ab2 + 3)
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Find the volume of the described solid.The base of a solid is the region between the curve y = 5cos x and the x-axis from x = 0 to x = ?/2. The cross sections perpendicular to the x-axis are squares with diagonals running from the x-axis to the curve.
A. 6?
B. 
?
C. 
?
D. 
?
Use the factor theorem to decide whether or not the second polynomial is a factor of the first.7x3 + 31x2 - 21x + 5; x + 5
A. Yes B. No
Solve the problem.The distance d, in feet, a bomb falls in t seconds is given by d = 
. How many seconds are required for a bomb released at 6000 feet to reach its target? (If necessary, round your answer to two decimal places.)
A. 1076.66 seconds B. 67.29 seconds C. 326.35 seconds D. 33.65 seconds
Solve.A printing company charges $2.6435 for each color flyer it prints. What would be the cost (before tax) for printing 200 color flyers? (Round the answer to the nearest cent.)
A. $54.87 B. $528.70 C. $52.87 D. $548.70