Evaluate the following expression.
?
72· 7
?
A. 225
B. 347
C. 3375
D. 346
E. 343
Answer: E
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This double-bar graph shows the number of male (M) and female (F) athletes at a university over a four-year period. Answer the question.
What percentage of all students involved in athletics in Year 1 was female? (Round to the nearest percent.)
A. 14% B. 43% C. 75% D. 57%
Find a matrix A and a column matrix B that describe the following tables involving credits and tuition costs. Find the matrix product AB, and interpret the significance of the entries of this product.
?
A. AB = 
Tuition for Student 2 is $1104 and tuition for Student 1 is $924.
B. AB = 
Tuition for Student 2 is $1119 and tuition for Student 1 is $941.
C. AB = 
Tuition for Student 1 is $1104 and tuition for Student 2 is $924.
D. AB = 
Tuition for Student 1 is $1119 and tuition for Student 2 is $941.
For the given functions f and g, find the requested function and state its domain.f(x) = 
; g(x) = 
Find f ? g.
A. (f ? g)(x) = 
; {x|x ? 0}
B. (f ? g)(x) = 
; {x|x ? -11, x ? 0}
C. (f ? g)(x) = 
; {x|x ? -11, x ? 0}
D. (f ? g)(x) = 
; {x|x ? -11, x ? 0}
Solve the equation.9k2 - 81 = 0
A. 
, 0
B. 9, 0
C. 
, - 3
D. 3, - 3