Find the indicated matrix.Let A =  and B = . Find A - B.

A.

B.

C.

D.


Answer: D

Mathematics

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Write the statement as a proportion. ? 54 is to 42 as 90 is to 70 ?

A.


B.


C.


D.


E.


Mathematics

Simplify by factoring out the given factor.x-7 - 7x-5; x-7

A. x-7(1 + 7x4) B. x-7(x - 7x3) C. x-7(x - 7x2) D. x-7(1 - 7x2)

Mathematics

Find the volume and surface area of the figure. Use 3.14 as the approximate value of ?. Round your answer to the nearest tenth, if necessary.

A. V = 210 ft3; SA = 127 ft2 B. V = 420 ft3; SA = 254 ft2 C. V = 420 ft3; SA = 127 ft2 D. V = 210 ft3; SA = 254 ft2

Mathematics

Determine if the number is prime, composite, or neither.36

A. Neither B. Composite C. Prime

Mathematics