Evaluate the sum of the arithmetic series with the given values for a1, an, and n.a1 = 19, an = -1671 , and n = 66
A. -54,554
B. -54,491
C. -109,032
D. -54,516
Answer: D
Mathematics
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Use logarithmic differentiation to find the derivative of y with respect to the independent variable.y = (sin x)cos x
A. cos x cot x - ln (sin x) B. cos x ln ( sin x) C. (sin x)cos x(cos x cot x - sin x ln (sin x)) D. cos x cot x - sin x ln(sin x)
Mathematics
Find the volume of the solid generated by revolving the region bounded by the given lines and curves about the 
. y = 3cos ?x, y = 0, x = -0.5, x = 0.5
A. 
?
B. 3?
C. 18?
D. 9?
Mathematics
Provide an appropriate response. Factor completely: 4x2 - 81y2
A. (4x + 9y)(4x - 9y) B. (2x - 9y)2 C. 4(x + 9y)(x - 9y) D. (2x + 9y)(2x - 9y)
Mathematics
Write as a percent. Round to the nearest hundredth of a percent when necessary.
A. 9.5 % B. 95 % C. 1.05 % D. 10.53 %
Mathematics