Decide whether the statement is true or false.3 is a solution of -5x + 4x = -2x.
A. True
B. False
Answer: B
Mathematics
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Find d2y/dx2 without eliminating the parameter.x = 1/t5 , y = ln t + 5, t > 0
A. 
B. 5t10
C. 
D. 
Mathematics
Solve the problem.A car's speedometer shows that the car is going 90 km/hr. What is this in miles per hour?
A. 56.3 mi/hr B. 85.1 mi/hr C. 95.4 mi/hr D. 144.9 mi/hr
Mathematics
Refer to the weighted voting system 
and the Shapley-Shubik definition of power. (The four players will be called P1, P2, P3, and P4.)In how many sequential coalitions is player P4 pivotal?
A. 6 B. 2 C. 0 D. 1 E. none of these
Mathematics
Evaluate the function.If r(x) = 
, find r(-5).
A. 0
B. 
C. 5
D. - 
Mathematics