Multiply. Simplify, if possible.11 ? 
A. - 
B. -55
C. - 8
D. - 
Answer: C
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Evaluate the surface integral of the function G over the surface S.G(x,y,z) = x2 + y2 + z2; S is the surface of the cube formed from the coordinate planes and the planes 
and 
A. 7
B. 
C. 5
D. 
Multiply the polynomials using the special product formulas. Express the answer as a single polynomial in standard form.(x - 3)3
A. x3 - 9x2 + 15x - 27 B. x3 - 9x2 + 9x - 27 C. x3 - 9x2 + 27x - 27 D. x3 - 3x2 + 15x - 27
Convert the rectangular equation to a polar equation that expresses r in terms of ?.x = 4
A. r = 
B. r = 4
C. r = 
D. cos ? = 4
Solve.An arrow is fired straight up from the ground with an initial velocity of 
per second. Its height, 
in feet at any time t is given by the function 
Find the interval of time for which the height of the arrow is greater than 
A. before 
sec or after 
sec
B. before 
sec
C. between 
and 
sec
D. after 
sec