Find the indicated matrix.Let C = . Find  C.

A.

B.

C.

D.


Answer: A

Mathematics

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Find the area.

A. 1080 ft2  B. 450 ft2 C. 270 ft2  D. 540 ft2 

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Perform the indicated clock arithmetic.4 ? 2 (12-hr clock)

A. 8 B. Does not exist C. 2 D. 12

Mathematics

Solve the problem.Martha can rake the leaves in her yard in 5 hours. Her brother can do the job in 4 hours. How long will it take them to do the job working together?

A.  hr
B.  hr
C. 20 hr
D.  hr

Mathematics

Calculate.8 ? 6 - 3 ? 82 + 8( 7 - 1)

A. -24 B. -96 C. -480 D. -89

Mathematics