Perform the indicated operation. If possible, simplify.Factor:cos2 x - 3cos x + 2
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Use spherical coordinates to find the moment of inertia of the solid homogeneous hemisphere of radius 5 and density 1 about a diameter of its base. Select the correct answer.
a. 205.13 b. 2616.67 c. 195.22 d. 213.5 e. 198.08
Mathematics
Find log 0.001.
A. 2 B. -3 C. -2 D. 3
Mathematics
Convert the weight as indicated.272 ounces to pounds
A. 27 lb B. 68 lb C. 18 lb D. 17 lb
Mathematics
Find the indicated probability.College students were given three choices of pizza toppings and asked to choose one favorite. The following table shows the results.
Find the probability that a randomly selected student prefers cheese toppings.
A. 0.338 B. 0.342 C. 0.329 D. 0.116
Mathematics