Solve the problem.A car traveling 63 miles per hour passes a bus traveling 56 in the same direction on the highway. If they maintain their speeds, how long will it take them to be 10.5 miles apart?
A. 1.5 hr.
B. 2 hr.
C. 3 hr.
D. 2.5 hr.
Answer: A
Mathematics
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Evaluate.-x2 for x = - 9
A. - 81
B. - 
C. 81
D. 
Mathematics
Provide an appropriate response.Find and explain the mistake(s); then work the problem correctly.(2x - 5y)(2x - 5y) = 4x2 + 25y2
What will be an ideal response?
Mathematics
Solve the inequality, and graph the solution set.4x2 - 28x + 44 ? 0
A. 
B. 
? 
C. 
D. 
? 
Mathematics
Simplify.
A. 40
B. 30
C. 
D. 10
Mathematics