Multiply.(x - 7)(x - 8)
A. x2 + 15x + 56
B. x2 + 15x - 56
C. x2 - 15x + 56
D. x2 - 15x - 56
Answer: C
Mathematics
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Find the maximum and minimum of the function f over the closed and bounded set S.f(x, y) = x + y + 88; S = {(x, y): x2 + y2 ? 1}
A. f(0, 0) = 88; maximum. No minimum.
B. f(
, 
) = (88 + 
); maximum. f(- 
, - 
) = (88 - 
); minimum.
C. f(0, 0) = 88; minimum. No maximum.
D. f(- 
, - 
) = (88 + 
); maximum. f(
, 
) = (88 - 
); minimum.
Mathematics
Simplify the exponential expression. Write any negative exponents as positive exponents. Assume all variables represent positive real numbers.(9x16y-18)5/2
A. 243x40y45
B. 
C. 
D. 
Mathematics
Find the determinant.
?
A. - 
B. - 
C. - 
D. 
Mathematics
Find the inverse of the function.f(x) = 5x
A. f-1(x) = 5x
B. f-1(x) = 5 + x
C. f-1(x) = 
D. f-1(x) = 
Mathematics