Solve the problem.Let a = 2i + 3j and b= -5j. Find 
b ? a.
A. 6
B. 
C. -15
D. -10
Answer: C
Mathematics
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Determine whether the given point is in the solution set to the given system.
9x - 9y - 6z = -116x + 3y - 3z = 1 x - y + 2z = -3
A. Yes B. No
Mathematics
Evaluate the integral.
Mathematics
Perform the matrix multiplication. Find AB for A = 
and B = 
.
A. 
B. 
C. 
D. 
Mathematics
Find the average rate of change for the function between the given values.f(x) = x3 + x2 - 8x - 7; from 0 to 2
A. 
B. -28
C. - 
D. -2
Mathematics