Find the absolute value of the complex number.-2i
A. 4
B. 2i
C. 2
D. -2
Answer: C
Mathematics
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Solve the absolute value equation.|2x + 4| + 7 = 5
A. 
B. 
C. 
D. ?
Mathematics
Determine whether the given function is one-to-one. If it is one-to-one, find its inverse.f(x) = 
- 7
A. f-1(x) = 
+ 7
B. f-1(x) = (x + 7)3
C. f-1(x) = x3 + 7
D. f-1(x) = (x - 7)3
Mathematics
Simplify the expression. Write the answer with positive exponents only. Assume that all variables represent positive real numbers.
8
A. 
B. x3/70
C. x1/4
D. x3
Mathematics
Multiply. Write a mixed numeral for the answer.2
? 2
A. 4
B. 4
C. 5
D. 8
Mathematics