Solve the equation. + 4 = 12

A. {- }
B. {, - }
C. {, - }
D. ?


Answer: C

Mathematics

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Determine whether the proportion is true or false. = 

A. True B. False

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Perform the indicated computation. Write the answer in scientific notation.(4 × 10-3)(1.5 × 10-1)

A. 6 × 103 B. 6 × 10-3 C. 6 × 10-4 D. 60 × 10-4

Mathematics

Use elimination to solve the system of equations.5x + 5y = 253x + 3y = 15

A. Inconsistent; no solutions B. (0, 5) C. (0, 6) D. (-1, 6)

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Multiply the expressions.(a - 11)(a + 11)

A. a2 - 121 B. a2 + 22a - 121 C. a2 - 22a - 121 D. a2 - 22

Mathematics