Calculate the direction of 
and the midpoint of line segment P1P2.P1(1, -1, -6) and P2(2, 1, -4)
A. 
i + 
j + 
k; 
B. 
i + 
j + 2k; 
C. 
i + 
j + 
k; 
D. 
i + 
j + 
k; 
Answer: A
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Solve the problem.Find the volume of a barber's pole having the shape of a right circular cylinder of radius 4 in. and height 19 in. topped by a sphere of the same radius. (Round to the nearest hundredth unit.)
A. 954.6 in.3 B. 1222.5 in.3 C. 1909.2 in.3 D. 535.9 in.3
Find the conjugate of the complex number. Then multiply the complex number by its conjugate.2 + 5i
A. 2 - 5i; 29 B. -3; 29 C. 7; 29 D. 2 + 5i; 29
Solve.A hemispherical bowl has a radius of 3 in. The volume of water in the bowl is found to be 3?h2 - 
?h3 cu. in. when it is h in. deep. Find an equivalent expression for the volume of water by factoring out a common negative factor.
A. ?h2(
h -3)
B. -?h2(
h + 3)
C. -?h2(
h - 3)
D. -?h2(h - 3)
Simplify the expression.log61
A. 6 B. -6 C. 1 D. 0