Write the linear system as a matrix equation in the form AX = B, where A is the coefficient matrix and B is the constant matrix. 2x + 9y + 8z = 24-2x + 9y + 4z = -12-2x + 2y - 2z = -22
A. 
= 
B. 
= 
C. 
= 
D. 
= 
Answer: B
Mathematics
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Find the indicated derivative.Find y ''' if y = 2x sin x.
A. y ''' = - 2x cos x + 6 sin x B. y ''' = 4 cos x - 2x sin x C. y ''' = - 2x cos x - 6 sin x D. y ''' = 2x cos x + 6 sin x
Mathematics
Find a formula for the inverse of the function described below.An organization determines that the cost per person of chartering a bus is given by the formula 
where x is the number of people in the group, and C(x) is in dollars.
A. C-1(x) = 
B. C-1(x) = 
C. C-1(x) = 
D. C-1(x) = 
Mathematics
Use transformations of the graph of y = x4 or y = x5 to graph the function.f(x) = x4 + 2 
A. 
B. 
C. 
D. 
Mathematics
Determine whether the expression is a polynomial.8x - 5
A. Polynomial B. Not a polynomial
Mathematics