Simplify the expression. Express the answer so that all exponents are positive. Whenever an exponent is 0 or negative, we assume that the base is not 0.(12x3)-2
A. 
B. 
C. 
D. 144x6
Answer: C
Mathematics
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Find the standard deviation. Round to one more place than the data.180, 105, 156, 275, 175, 125, 113, 227, 136
A. 20.7 B. 56.0 C. 59.9 D. 52.8
Mathematics
The function f is one-to-one. Find its inverse.f(x) = 
A. f-1(x) = (x - 7)2
B. f-1(x) = x2 - 7, x ? 0
C. f-1(x) = x2 + 7, x ? 0
D. f-1(x) = 
Mathematics
If the expression is in exponential form, write it in radical form. If it is in radical form, write it in exponential form.x1/3
A. 
B. 
C. 
D. -
Mathematics
Use the quadratic formula to solve the equation. (All solutions are real numbers.)
= 
+ 
A. 
B. 
C. 
D. {-1}
Mathematics