Write a fraction to represent the shaded area.
A. 
B. 
C. 
D. 
Answer: B
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Solve.The speed of a ball dropped from a tower is given by the linear function f(t) = 32t where f(t) is in feet per second and t is the number of seconds since the ball was dropped. Find the speed of the ball after 6 seconds.
A. 192 feet per second B. 6 feet per second C. 182 feet per second D. 32 feet per second
Verify that the values of the variables listed are solutions of the system of equations.
x = -4, y = 5
A. solution B. not a solution
Find the equation of the line that has the given properties. Write the equation in slope-intercept form, if possible. Contains (2, 1); parallel to the line 7x + 4y = 34
A. 4x + 7y = 1 B. 7x - 4y = 18 C. 7x + 4y = 18 D. 2x + 4y = 34
Solve the problem.The rate at which an assembly line worker's efficiency E (expressed as a percent) changes with respect to time t is given by 
where t is the number of hours since the worker's shift began. Assuming that 
find E(t).
A. E(t) = 80t - 6t2 + 15 B. E(t) = 80t - 3t2 + 169 C. E(t) = 80t - 3t2 + 15 D. E(t) = 80t - 3t2 + 92