Find the circumference of the circle. Use 3.14 or 
for ? as indicated.Use 
for ?.
A. 169
ft
B. 23
ft
C. 11
ft
D. 46
ft
Answer: D
Mathematics
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Evaluate the integral using the given substitution.
dx , u = x5 - 3
A. 
(x5 - 3)5 + C
B. 
x25 - 3 + C
C. 
(x5 - 3)3 + C
D. 
(x5 - 3)5 + C
Mathematics
Find the volume of the described solid.The base of a solid is the region between the curve y = 6cos 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. 9?
B. 
?
C. 3?
D. 
?
Mathematics
Simplify. Assume that all variables represent positive real numbers.
A. 7 B. -7 C. 49 D. -49
Mathematics
Divide.(12x6y5 - 14x2y2 - 8x3y) ÷ (-2x2y)
A. -6x4y4 + 7y + 4x B. -6x4y4 + 7y + 4xy C. -6x4y5 - 7y2 - 4xy D. -6x4y4 - 7y - 4x
Mathematics