Convert to polar coordinates with and  between and

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A.
B.
C.
D.
E.

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Answer: C

Mathematics

Solve the problem.Find the point on the plane    that is nearest the origin.

A. (2, 4, 0) B. (-2, 8, 2) C. (4, 4, 0) D. (2, 4, -2)

Solve the problem.An elevator has 4 passengers and 8 floors. Find the probability that no 2 passengers get off on the same floor considering that it is equally likely that a person will get off at any floor.

A. 0.910 B. 0.610 C. 0.500 D. 0.410

Suppose that, for a certain exam, a teacher grades on a curve. It is known that the mean is 70 and the standard deviation is 8. There are 50 students in the class. What score would be necessary to obtain an A at least? ?       ? __________ or above

Fill in the blank(s) with the appropriate word(s).

Solve the formula for the specified variable.p = 2l + 2w for l

A. l = 
B. l = 
C. l = p - w
D. l = p - 2w - 2