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 $3588.
B.
AB = 
Tuition for Student 1 is $1272, tuition for Student 2 is $1194, and tuition for Student 3 is $923.
C.
AB = 
The total tuition paid by all 3 students is $3739.
D.
AB = 
Tuition for Student 1 is $1265, tuition for Student 2 is $1196, and tuition for Student 3 is $909.
Answer: B
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A. 2x13 B. x12 C. x13 D. 2x12
Simplify by rationalizing the denominator. Write your answer in a + bi form.
A. 
i
B. - 
i
C. 
i
D. - 
i
Find the equation of the line passing through the indicated two points in standard form.(8, 0) and (0, -4)
A. y = - 
x + 8
B. y = - 
x - 4
C. 4x - 8y = 32
D. 4x + 8y = 32
Factor completely. State that the polynomial is prime if it cannot be factored.12x2 - 52x - 40
A. (12x + 8)(x - 5) B. 4(3x - 2)(x + 5) C. prime D. 4(3x + 2)(x - 5)