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 1 is $1063, tuition for Student 2 is $836, and tuition for Student 3 is $791.
B.
AB = 
Tuition for Student 1 is $1064, tuition for Student 2 is $834, and tuition for Student 3 is $781.
C.
AB = 
Tuition for Student 1 is $1057, tuition for Student 2 is $836, and tuition for Student 3 is $767.
D.
AB = 
Tuition for Student 1 is $1074, tuition for Student 2 is $820, and tuition for Student 3 is $789.
Answer: B
You might also like to view...
Solve the system of equations by substitution.
x + 
y = 32
x - 
y = 40
A. (100, -27) B. (-100, 27) C. (100, 27) D. (-100, -27)
Solve the system of equations using the inverse of the coefficient matrix.
A. x = 2, y = 3, z = 5 B. x = -2, y = -3, z = 3 C. x = 2, y = -3, z = 1 D. The system is inconsistent.
Simplify.
3
A. 
B. 
C. 
D. 
Solve.The price of a stock rose 2 points, fell 11 points, and again fell 13 points. What was the stock's total change?
A. 26 points B. -22 points C. 4 points D. -26 points