Evaluate the expression for the given replacement values.x - y
for x = -3, y = -20
A. -23
B. 17
C. -17
D. 23
Answer: B
Mathematics
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Perform the indicated operation.
A. x2 + 3
B. x - 3
C. x + 3
D. x + 3 + 
Mathematics
Show that f and g are inverses of each other by verifying that f(g(x)) = x = g(f(x)).
; 
What will be an ideal response?
Mathematics
The graph of a logarithmic function is shown. Select the function which matches the graph.
A. f(x) = -log3x B. f(x) = 1 - log3x C. f(x) = log3x D. f(x) = log3(-x)
Mathematics
The function f(x) changes value when x changes from x0 to x0 + dx. Find the approximation error 
. Round your answer, if appropriate.f(x) = 
, x0 = 4, dx = 0.6
A. 0.00351 B. 0.07866 C. 0.10702 D. 0.00587
Mathematics