Write the expression in the standard form a + bi.If z = 3 + 6i and w = -7 + i, evaluate 
.
A. -10 - 5i
B. 10 - 5i
C. 10 + 5i
D. -4 + 7i
Answer: B
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Solve.The number of books in a small library increases according to the function 
where t is measured in years. How many books will the library have after 3 year(s)?
A. 3946 B. 4614 C. 7421 D. 3223
Determine whether the argument is valid or invalid.If I hear that poem, it reminds me of my mother. If I get sentimental, then it does not remind me of my mother. I get sentimental. Therefore, I don't hear that poem.
A. Valid B. Invalid
Find the volume of the cylinder satisfying the given condition. Approximate values to the nearest tenth.radius = 13.5 in., height = 4 in.
A. 678.2 in.3 B. 2289.1 in.3 C. 9156.2 in.3 D. 4578.1 in.3
Classify the following as either a pair of equivalent equations or a pair of equivalent expressions.7(y - 6) = 14, 7y - 42 = 14
A. Equivalent expressions B. Equivalent equations