Solve the problem.A club has 21 members. In how many ways can they select a person to be President and a different person to be Treasurer?
A. 420 ways
B. 210 ways
C. 428 ways
D. 408 ways
Answer: A
Mathematics
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Evaluate the expression for the given replacement values.2x - yfor x = 9, y = -3
A. 21 B. 14 C. -4 D. 15
Mathematics
Solve the problem.The height of the tallest building in the town of Chorlton is 1157 feet. It is 165 feet taller than the second tallest building. What is the height of the second tallest building in Chorlton?
A. 1322 feet B. 991 feet C. 1321 feet D. 992 feet
Mathematics
Find a numerical expression for the phrase and evaluate it.The product of 6 and -4, added to -7
A. 168 B. -31 C. 34 D. 4
Mathematics
Solve the equation using an integrating factor., t > 0
A. y = Ct + e2t B. y = t + 1/2 + Ce2t C. y = t - Ce2t D. y = 1/2 + Ce-2t
Mathematics