For the functions f(x) and g(x), evaluate the indicated function.Find 
(4) when f(x) = x - 5 and g(x) = 7x + 1.
A. - 
B. - 
C. - 
D. - 
Answer: C
Mathematics
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Use a sum-to-product identity to rewrite the expression.cos 
- cos 
A. -2
B. -2
C. -2
D. -2
Mathematics
Find the equation of a circle satisfying the given conditions.Center: (8, 0); radius: 
A. (x - 8)2 + y2 = 14 B. x2 + (y + 8)2 = 196 C. (x + 8)2 + y2 = 14 D. x2 + (y - 8)2 = 196
Mathematics
Find the variation equation for the variation statement.z varies directly as x and inversely as y; z = 3 when x = 45 and y = 105
A. z = 
B. z = 
C. z = 
D. z = 7xy
Mathematics
Simplify.
A. - 
B. - 
C. - 
D. - 
Mathematics