Sketch a graph of f.f(x) = -4x2 + 6x
A. 
B. 
C. 
D. 
Answer: D
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Express the sum in sigma notation.3 + 6 + 9 + 12 + 15
A. 
B. 
C. 
D. 
Determine whether the statement is true or false.Let A = {1, 3, 5, 7} B = {5, 6, 7, 8} C = {5, 8} D = {2, 5, 8} U = {1, 2, 3, 4, 5, 6, 7, 8}{5} ? D
A. True B. False
Solve.Richard has $51.52 deducted from his monthly salary of $1610 for a vacation savings plan. What percent of Richard's salary is withheld for the vacation savings plan? What percent of Richard's salary is not withheld for vacation savings plan?
A. 4.2%; 958% B. 3.2%; 96.8% C. 958%; 4.2% D. 96.8%; 3.2%
Solve the problem.A study was conducted to compare the average time spent in the lab each week versus course grade for computer students. The results are recorded in the table below. The linear model for this data is 
where x is the number of hours spent in the lab and y is grade on the test. Use this model to predict the grade of a student who spends 12 hours in the lab. Number of hours spent in labGrade (percent) 
A. 68.7 B. 76.6 C. 66.3 D. 62.3