Find different polar coordinates (r, ?) for the same point under the given conditions.
, r < 0 and 0 < ? < 2?
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Solve the problem.Evaluate 
at t = 9 for the function w(x, y, z) = exyz2; x = t, y = t, z = 
.
A. 
B. 
e
C. 0
D. - 
e
Mathematics
A hemisphere-shaped dome of radius 70 ft is to be coated with a layer of rust-proofer before painting. Use differentials to estimate the amount of rust-proofer needed if the coat is to be 0.03 in. thick.
?
Hint: The volume of a hemisphere of radius r is 
.
?
A. 76.97 ft3 B. ?76.54 ft3 C. ?77.54 ft3 D. ?76.78 ft3
Mathematics
Factor completely. If the polynomial is prime, then state this as your answer.x3 - 25x + 6x2 - 150
A. (x - 5)2(x + 6) B. prime C. (x + 5)(x - 5)(x + 6) D. (x2 - 25)(x + 6)
Mathematics
Find the product or quotient.
÷ 
A. 
B. 
C. 
D. z + 2
Mathematics