Tell whether the statement is true or false.{54, 55, 54, 55} = {54, 55}
A. True
B. False
Answer: A
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Solve the problem.Rachel's bus leaves at 1:15 PM and accelerates at the rate of 3 meters per second per second. Rachel, who can run 8 meters per second, arrives at the bus station 5 seconds after the bus has left. Find parametric equations that describe the motions of the bus and Rachel as a function of time, and simulate the motion of the bus and Rachel by simultaneously graphing these equations.
A. Bus: x1 = 
t2, y1 = 2;
Rachel: x2 = 8(t - 5), y2 = 4
B. Bus: x1 = 3t2, y1 = 2;
Rachel: x2 = 8(t - 5), y2 = 4
C. Bus: x1 = 
t2, y1 = 2;
Rachel: x2 = 8(t + 5), y2 = 4
D. Bus: x1 = 3t2, y1 = 2;
Rachel: x2 = 8(t - 5), y2 = 4
Provide an appropriate response.If x2 + y2 = 4, use implicit differentiation to find 
and simplify your answer. Note: 
should not appear in your final answer.
What will be an ideal response?
Solve the problem.An average score of 90 for 5 exams is needed for a final grade of A. John's first 4 exam grades are 79, 89, 97, and 95. What range of scores on the fifth (and last) 100-point exam will guarantee John an A in the course?
A. 90 to 100 B. 95 to 100 C. 99 to 100 D. 85 to 100
Perform the division.
A. x2y2 + 4 - 6xy
B. x2y2 + 4 - 
C. xy + 4 - 
D. x2y2 + 4 - xy