Perform the indicated operation and write the answer in the form 
where a and b are real numbers.6i + (-9 - i)
A. -9 + 7i
B. 9 - 5i
C. -9 + 5i
D. 9 - 7i
Answer: C
Mathematics
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Use a spherical coordinate integral to find the volume of the given solid.the solid enclosed by the cardioid of revolution 
A. 
?
B. 5936?
C. 
?
D. 2968?
Mathematics
Subtract in the indicated base.
A. 1334 B. 2324 C. 1994 D. 1434
Mathematics
Find v ? u.v = 5i - 8j and u = -3i - 5j
A. 25 B. -15i + 40j C. -55 D. 2i - 13j
Mathematics
Eliminate the parameter to obtain a Cartesian equation of the curve.x = 
, y = 3t + 2, 0 ? t ? 4
A. y = 2x2 + 3, -1 ? x ? 2 B. y = 3x2 + 2, 0 ? x ? 2 C. y = -2x + 18, 0 ? x ? 2 D. y = -2x2 + 18, 0 ? x ? 2
Mathematics