Solve the problem.An object's acceleration at time t is given by a = 14t, and its initial velocity is 5. Find the object's velocity as a function of time.
A. v = 5t2 + 14
B. v = 7t2 + 5
C. v = 14t2 + 5
D. v = 7t2 + 5t
Answer: B
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Graph the parabola whose equation is given.y = -x2 - 2x + 8
A. 
B. 
C. 
D. 
Divide. Express the quotient in lowest terms.
÷ 
A. 
B. 
C. 
D. 
Convert the given unit of measure to the measure shown.806 milligrams to kilograms
A. 0.0806 kilogram B. 80,600 kilograms C. 806,000 kilograms D. 0.000806 kilogram
Solve the problem.A racetracks curve is banked so that the outside of the curve is slightly elevated or inclined above the inside of the curve. This inclination is called the elevation of the track. The maximum speed on the track in miles per hour is given by 
where r is the radius of the track in miles and ? is the elevation in degrees. Find the maximum speed for a racetracks with an elevation of 26° and a radius of 
Round to the nearest mile per hour.
A. 186 miles per hour B. 157 miles per hour C. 54,680 miles per hour D. 34,646 miles per hour