Perform the matrix operation.Given A = 
and B = 
, find 2A + 3B.
A. 
B. 
C. 
D. 
Answer: C
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Solve the system.4x - 2y - 4z = -3-5x + 6y - 6z = 88x - 4y - 8z = 5
A. (-3, 8, 5) B. (2, 2, -1) C. Infinitely many solutions D. No solution
Multiply. Assume that all variables represent non-negative real numbers.
(
- 
)
A. 
B. 
- 
C. 7
- 7
D. 8
Solve the problem.Given the acceleration, initial velocity, and initial position of a body moving along a coordinate line at time t, find the body's position at time t.a = 10, v(0) = 13, s(0) = -6
A. s = -5t2 - 13t - 6 B. s = 5t2 + 13t C. s = 10t2 + 13t - 6 D. s = 5t2 + 13t - 6
Graph the function f(x) over the given interval. Partition the interval into 4 subintervals of equal length. Then add to your sketch the rectangles associated with the Riemann sum 
, using the indicated point in the kth subinterval for ck.f(x) = -4x2, [0, 4], left-hand endpoint
A. 
B. 
C. 
D. 