Simplify the expression. Write your answer without negative exponents. Whenever an exponent is negative or zero, assume that the base is not zero.
-3
A. 27
B. 9
C. -9
D. -27
Answer: D
Mathematics
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Find the required quantity given the wire that lies along the curve r and has density ?.Moment of inertia Iz about the z-axis, where r(t) = (2 cos t)i + (2 sin t)j, 0 ? t ? 
; 
A. Iz = 32
B. Iz = 0
C. Iz = 8
D. Iz = 32
Mathematics
Determine if the plot is the graph of a function.
A. Yes B. No
Mathematics
Find the compound amount for the deposit if interest is compounded annually. Round your answer to the nearest cent.$500 at 2% for 4 years
A. $2040.00 B. $541.22 C. $4000.00 D. $0.00
Mathematics
Find the vertex of the parabola.f(x) = -x2 + 15x - 2
A. 
B. 
C. (15, -2)
D. 
Mathematics