Write the augmented matrix for the system. 4x + 7y = 60 2y = 8
A. 
B. 
C. 
D. 
Answer: B
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Solve the problem.A stockbroker bought 50 shares of stock for $34.16 each. What was the total amount of the purchase?
A. $1708.10 B. $1708.00 C. $1708.11 D. $1707.90
Solve the problem.Consider the following simplified digital photograph that has a 3 × 3 grid with four gray levels numbered from 0 to 3. It shows a letter Y in dark gray on a white background.
Let A be the 3 × 3 matrix that represents this figure digitally. Find the matrix which represents the negative image of the picture represented by A.
A. 
B. 
C. 
D. 
Solve the problem.Two angles are supplementary, and one is 5° more than six times the other. Find the larger angle.
A. 70° B. 155° C. 25° D. 110°
Multiply using one of the rules for the square of a binomial. Assume any variable exponents represent whole numbers.(10x2 - 3y)2
A. 100x4 - 60x2y + 9y2 B. 100x4 - 109x2y + 9y2 C. 20x4 - 30x2y + 6y2 D. 100x2 - 60x2y + 9y2