Solve the problem.The driver of a car traveling at 60 ft/sec suddenly applies the brakes. The position of the car is 
t seconds after the driver applies the brakes. How many seconds after the driver applies the brakes does the car come to a stop?
A. 10 sec
B. 30 sec
C. 20 sec
D. 60 sec
Answer: A
Mathematics
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Provide an appropriate response.When using the quadratic formula, why is it necessary only to examine the discriminant to determine if the equation has real-number solutions?
What will be an ideal response?
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Specify the area, A, that the following integral represents by identifying the function and interval.
dx
A. f(x) = ex + 1, [6, 0] B. f(x) = e-x - 1, [6, 0] C. f(x) = ex + 1, [0, 6] D. f(x) = e-x - 1, [0, 6]
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Use the Principle of Mathematical Induction to show that the statement is true for all natural numbers n.1 ? 1 + 2 ? 1 + 3 ? 1 + . . . + n = 
What will be an ideal response?
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