Perform the operation.
A. 23
B. 19 R5
C. 19 R4
D. 19
Answer: C
Mathematics
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Solve the problem.Let f(x) = cos x, g(x) = x - ?/2, and h(x) = 2x. Find h(f(x)).
A. 2 cos x B. cos(2x) C. 2 cos(x - ?/2) D. cos(x - ?/2)
Mathematics
Graph the solution set of the system of inequalities.3x - 2y ? 6 x - 1 ? 0
A. 
B. 
C. 
D. 
Mathematics
Use Gaussian elimination to solve the linear system by finding an equivalent system in triangular form.
A. (0, 5, 0) B. no solution C. (0, 5, -5) D. (0, 0, 5)
Mathematics
Use the standard normal curve table to find the z-score for the given condition.20.05% of the total area is to the right of z.
A. -0.84 B. 0.83 C. 0.82 D. 0.84
Mathematics