Calculate the area of the surface S.S is the portion of the sphere x2 + y2 + z2 = 81 between z = - 
and z = 
.
A. 9
?
B. 81
?
C. 162
?
D. 162?
Answer: B
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Determine whether the given linear equations are parallel, perpendicular, or neither.x- 
y = 4x + 
y = -6
A. parallel B. perpendicular C. neither
Information is given about a polynomial f(x) whose coefficients are real numbers. Find the remaining zeros of f.Degree 3; zeros: 5, 4 - i
A. -5 B. -4 + i C. 4 + i D. no other zeros
Solve the problem.A radio transmission tower is 230 feet tall. How long should a guy wire be if it is to be attached 5 feet from the top and is to make an angle of 23° with the ground? Give your answer to the nearest tenth of a foot.
A. 244.4 feet B. 588.6 feet C. 575.8 feet D. 249.9 feet
The graph of two equations along with the points of intersection are given. Substitute the points of intersection into the systems of equations. Are the points of intersection solutions to the system of equations (Y/N)?
A. No B. Yes