Write the augmented matrix for the system. Do not solve. 6x + 7z = 44 9y + 2z = 49 3x + 2y + 3z = 31
A. 
B. 
C. 
D. 
Answer: C
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Solve the equation.3x = 27
A. 81 B. 8 C. 27 D. 9
Solve using the elimination method. Use a graphing calculator to check your answer. 2x + 8y = 10 4x = 8 - 16y
A. (7, 9) B. (-3, 2) C. (-3, 9) D. No solution
Solve the problem.A ball is thrown downward with an initial velocity of 42 meters per second from a cliff that is 
high. The height of the ball is given by the quadratic equation 
where h is in meters and t is the time in seconds since the ball was thrown. Find the time that the ball will be 
from the ground. Round your answer to the nearest tenth of a second.
A. 1.5 sec B. 1.3 sec C. 2.4 sec D. 1.4 sec
Find the dimensions of the null space and the column space of the given matrix.A = 
A. dim Nul A = 4, dim Col A = 1 B. dim Nul A = 2, dim Col A = 3 C. dim Nul A = 3, dim Col A = 3 D. dim Nul A = 3, dim Col A = 2