Determine whether f is continuous at c.f(x) = 
;c = -5
A. continuous
B. not continuous
Answer: A
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Solve.A car travels 400 miles on level terrain in the same amount of time it travels 160 miles on mountainous terrain. If the rate of the car is 30 miles per hour less in the mountains than on level ground, find its rate in the mountains.
A. 80 mph B. 40 mph C. 50 mph D. 20 mph
Provide an appropriate response.What property of real numbers justifies the method of multiplying by the LCD of the parts? Why?
What will be an ideal response?
Factor completely. If the polynomial cannot be factored, write prime.s2 + 8s + 15
A. (s + 3)(s + 5) B. (s + 15)(s + 8) C. (s + 15)(s - 1) D. (s - 3)(s - 5)
Solve.Diane has to travel 643 miles. After 2 hours of driving at 107 km/hr, how much further does she have to drive? Give your answer in miles. Round to the nearest mile.
A. 510 miles B. 429 miles C. 298 miles D. 447 miles