Solve the equation.z + 2 = 7

A. {5}
B. {-5}
C. {-9}
D. {9}


Answer: A

Mathematics

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Use a calculator to evaluate the expression. (Round your answer to three decimal places.)  

A. 9.2 × 10-4 B. 1.356 × 10 -3 C. 1.84 × 10-3 D. 1.356 × 100 E. 9.2 × 100?

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Combine like terms, if possible.6n3 - 8n3

A. 2n3  B. -2n6  C. 2n6  D. -2n3 

Mathematics

Determine the value of the indicated function in the given manner.Find cos 90° by using the functions of 45°.

A. 0 B. 1 C. - 1 D. undefined

Mathematics

Subtract. Write the answer in lowest terms.

A. 9
B. 16
C. 15
D. 9

Mathematics