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
Answer: C
Mathematics
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Simplify.- 
A. - 
B. 
C. does not exist as a real number
D. - 
Mathematics
Find the slope of the line.y = 5
A. m = 1 B. m = -1 C. m = 0 D. undefined slope
Mathematics
Which property or identity justifies the statement?
? 
is a rational number.
A. Multiplication Inverse B. Multiplication Property C. Multiplicative Identity D. Closure Property
Mathematics
Use a calculator to solve the equation on the interval [0, 2?). Round the answer to two decimal places.sin x = 0.39
A. 0.40, 3.54 B. 0.40, 1.97 C. 0.40, 5.88 D. 0.40, 2.74
Mathematics