Evaluate the expression.(-7)3
A. -343
B. -21
C. 343
D. 21
Answer: A
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Create the required linear function an use it to answer the question.Persons taking a 30-hour review course to prepare for a standardized exam average a score of 620 on that exam. Persons taking a 70-hour review course average a score of 791. Based on these two data points, create a linear equation for the function that describes how score varies as a function of time.
A. s = 3.8475t + 495.75 B. s = -4.275t + 491.75 C. s = 3.8475t - 495.75 D. s = 4.275t + 491.75
Identify which graph matches the equation.f(x) = x2 + 5
A. 
B. 
C. 
D. 
Solve the problem.The function V(r) = 3?r2 describes the volume of a right circular cylinder of height 3 feet and radius r feet. Find the instantaneous rate of change of the volume with respect to the radius when r = 10. Leave answer in terms of 
A. 20? cubic feet per feet B. 6? cubic feet per feet C. 60? cubic feet per feet D. 30? cubic feet per feet
Using the variable x, write the interval as an inequality.(-9, 7]
A. -9 < x ? 7 B. -9 ? x ? 7 C. x ? 7 D. -9 < x < 7