Solve the problem.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 = 
The total tuition paid by all 3 students is $3838.
B.
AB = 
The total tuition paid by all 3 students is $3687.
C.
AB = 
Tuition for Student 1 is $1295, tuition for Student 2 is $1229, and tuition for Student 3 is $954.
D.
AB = 
Tuition for Student 1 is $1302, tuition for Student 2 is $1227, and tuition for Student 3 is $968.
Answer: D
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A. 
B. 
C. 
D. 
Find all solutions of the equation in the interval [0, 2?).csc2 = 2
A. 
B. 
C. 
D. 
List the critical values of the related function. Then solve the inequality.
< 
A. -
, -4, -2, 1, 4, 
; (-
, -4) ? (-1, 1) ? (4, 
)
B. -
, 
; (-
, 
)
C. 1, 4; (-?, 1) ? (4, ?)
D. -
, -4, -2, 1, 4, 
; (-?, -
) ? (-4, -1) ? (1, 4) ? (
, ?)