Perform the operation indicated. Simplify.
+ 
+ 
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Solve the equation.
= 0
A. (-?, -9] ? [9, ?) B. 9 C. 9, -9 D. -9
Mathematics
Determine whether the two pairs of numbers are proportional.0.1, 0.15 and 2, 2.4
A. Yes B. No
Mathematics
Simplify the expression, leaving your answer with only positive exponents. Assume that all variables represent positive numbers.
A. 8x-1/8 B. 63x-1/8 C. 8x-2/3 D. 8x-1/2
Mathematics
Find k such that the function is a probability density function over the given interval. Then write the probability density function.f(x) = 
; 1 ? x ? 17
A. 
; f(x) = 
B. 
; f(x) = 
C. ln 17; f(x) = x ln 17
D. 1 - ln 17; f(x) = 
Mathematics