Solve the problem.Find the centroid of the region enclosed between the cone with equation 
and the plane with equation 
A. (
, 
, 
) = 
B. (
, 
, 
) = 
C. (
, 
, 
) = 
D. (
, 
, 
) = 
Answer: D
Mathematics
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Find decimal notation, round as indicated.
Round to the nearest tenth.
A. 0.1 B. 1.14 C. 0.9 D. 1.1
Mathematics
Provide an appropriate response.Perform the indicated operation, leaving the answer in lowest terms: 
× 
=
A. 
B. 
C. 
D. 
Mathematics
For the curve r(t), write the acceleration in the form aTT + aNN.r(t) = (t + 6)i + (ln(cos t) - 1)j + 9k
A. a = (-sec t tan t)T - (sec t)N B. a = (sec t tan t)T + (sec t)N C. a = (-sec t tan t)T + (sec t)N D. a = (sec t tan t)T - (sec t)N
Mathematics
Multiply the complex numbers and simplify powers of i.5i(9 - 4i)
A. 45i - 20i2 B. 45i - 20 C. 45i + 20i2 D. 20 + 45i
Mathematics