Let f(x) = x 2 – 18 and g(x) = 10 – x. Find (f + g) (-7).
a. 35
b. 25
c. 48
d. -15
c. 48
Mathematics
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Write as the sum and/or difference of logarithms. Express powers as factors.ln 
, x > 7
A. ln 3 + ln x - 11ln (1 + 2x) - 9ln (x - 7)
B. ln 3 + ln x + 
ln (1 + 2x) - ln 9 - ln (x - 7)
C. 3ln x + 
ln (1 + 2x) - 9ln (x - 7)
D. ln 3 + ln x + 
ln (1 + 2x) - 9ln (x - 7)
Mathematics
Graph the solution set of the system of inequalities.
A. 
B. 
C. 
D. 
Mathematics
Find the double integral over the rectangular region R with the given boundaries.
R0 ? x ? 1, 1 ? y ? e
A. 
B. 2
C. 1
D. 
Mathematics
Simplify the exponential expression.(-7)3
A. -21 B. 343 C. -2187 D. -343
Mathematics