Express the number in scientific notation.0.0000004

A. 4 × 10-6
B. 4 × 10-8
C. 4 × 10-7
D. 4 × 10-9

Answer: C

Mathematics

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Provide an appropriate response.Find the perimeter of the given figure. 

A. 24 cm B. 36 cm2 C. 24 cm2 D. 36 cm

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Use the given matrices to compute the given expression.If A =  and B = , find -2A + 4B.

A.

B.

C.

D.

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Add or subtract as indicated.-220 - (-0.8855 + 0.1)

A. -220.9855 B. 220.7855 C. -219.2145 D. -219.0145

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Solve.A gardener is fencing off a rectangular area with a fixed perimeter of 44 ft. What is the maximum area?

A. 2.75 ft2 B. 121 ft2 C. 484 ft2 D. 11 ft2

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