Write the expression in the form a + bi, where a and b are real numbers.
A. -5
B. 5
C. 25i
D. 5i
Answer: A
Mathematics
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Multiply.(3
)(
)(4
)
A. 12
B. 12ab
C. 7
D. 7ab
Mathematics
Simplify.
A. 7 B. 9 C. 3 D. 8
Mathematics
Divide.
÷ 
A. 
B. 
C. z + 10
D. 
Mathematics
Find the inverse of the function.f(x) = 
, x ? -3
A. Not a one-to-one function B. f-1(x) = x2 - 9, x ? 0 C. f-1(x) = x2 - 3, x ? 0 D. f-1(x) = -x2 + 3, x ? 0
Mathematics