Solve the problem.The bar graph shows the number of fatal vehicle crashes per 100 million miles driven for drivers of various age groups. 
The number of fatal vehicle crashes per 100 million miles, N, for drivers of age x can be modeled by the formula N = 0.012x2 - 1.18x + 31.25.Using the formula, what age group(s) are expected to be involved in 9 fatal crashes per 100 million miles driven? Use a calculator and round to the nearest year. How well does the formula model the trend in the actual data shown in the bar graph?
A. 25 year-olds and 73 year-olds; The formula does not accurately model the data for ages expected to be involved in 9 fatal crashes per 100 million miles driven.
B. 57 year-olds; The formula models the trend in the data reasonably well.
C. 13 year-olds and 85 year-olds; The formula models the trend in the data reasonably well.
D. 41 year-olds; The formula does not accurately model the data for ages expected to be involved in 9 fatal crashes per 100 million miles driven.
Answer: A
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Solve the problem. Unless stated otherwise, assume that the projectile flight is ideal, that the launch angle is measured from the horizontal, and that the projectile is launched from the origin over a horizontal surfaceA baseball is hit when it is 2.2 ft above the ground. It leaves the bat with an initial velocity of 
at a launch angle of 22°. At the instant the ball is hit, an instantaneous gust of wind blows against the ball, adding a component of -12.8i (ft/sec) to the ball's initial velocity. Find a vector equation for the path of the baseball.
A. r = (152 sin 22° - 12.8)ti + (2.2 + (152 cos 22°)t - 16t2)j B. r = (152 cos 22° - 12.8)ti + (2.2 + (152 sin 22°)t - 16t2)j C. r = ((152 cos 22°)t - 12.8)i + (2.2 + (152 sin 22°)t - 16t2)j D. r = (152 cos 22° - 12.8)ti + (2.2 + (152 sin 22°)t + 16t2j
Use rational exponents to simplify the expression, if possible. Then, write the answer in radical form.
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Simplify the following. Leave answer as a power.6 ? 2382 + 17 ? 2382
A. 2382 B. 6 ? 2483 C. 2383 D. 6 ? 2383
Solve the problem.The following graph shows weekend gross revenue for a summer blockbuster film. 
Find the difference in revenue between the fourth and fifth weekends.
A. $27,312,250 B. $17,319,938 C. $3,922,309 D. $7,327,626