Find the products AB and BA to determine whether B is the multiplicative inverse of A.A = ,B = 

A. B ? A-1
B. B = A-1


Answer: A

Mathematics

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Refer to the circle graph to solve the problem.Time Required to Install Carpeting in a House (Work Shift = 8 hours) In which activity was the least amount of time spent? How many hours did this activity take?

A. Removing old carpet;  hour
B. Installing new carpet; 3 hours
C. Cleaning up;  hour
D. Moving furniture;  hours

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Find the zeros of the function.f(x) = 3x2 - 48x + 192 

A. -8 B. 8 C. 0, 8 D. -8, 8

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Write the number in standard form.3.77 x 10-4

A. 0.0000377 B. -377,000 C. 0.00377 D. 0.000377

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Solve the problem.Given csc ? = 2 , use trigonometric identities to find the exact value of sec2 ?.

A.
B.
C.
D.

Mathematics