Solve the problem.Let A = {p, q, r, s, t} and B = {p, r, t, u, v}. Find n(A ? B).
A. 3
B. 10
C. 7
D. 2
Answer: C
Mathematics
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Provide an appropriate response. Solve the following quadratic using any method, rounding to the nearest hundredth if necessary: 3x2 = 9x + 30.
A. x = 3, 5, -2 B. x = -5, 2 C. x = 5, -2 D. x = -5, -2
Mathematics
Write the following in exponential form. Assume that all variables represent positive values.
A. 
B. (5m + 9)-6/5
C. (5m + 9)5/6
D. (5m + 9)6/5
Mathematics
Solve. Write a mixed numeral for the answer.Peter must practice the piano 10
hours per week. He has already practiced 2
hours. How many more hours does he need to practice?
A. 7 hr
B. 6
hr
C. 7
hr
D. 8
hr
Mathematics
Solve the system of equations by Gaussian elimination.
A. {(4, 3, -1)} B. {(-1, 3, 4)} C. {(-1, 4, 3)} D. ?
Mathematics