Identify the pair of lines as parallel, perpendicular, or intersecting.
A. Parallel
B. Intersecting
C. Perpendicular
Answer: B
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Write the best-fit linear model for the data.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. Find a linear function that approximates a student's course grade as a function of the number of hours spent in lab. Number of hours spent in lab Grade (percent) 
A. y = 88.6 - 1.86x B. y = 1.86 + 88.6x C. y = 0.930 + 44.3x D. y = 44.3 + 0.930x
Determine whether the given function is even, odd, or neither.
A. Even B. Odd C. Neither
Solve.The volume of a sphere with radius r is given by the formula 
Find the volume of a sphere with radius 3 meters. Use 3.14 for the value of ? .
A. 113.04 sq m B. 36 sq m C. 37.68 sq m D. 339.12 sq m
What is the meaning of the expression?-2q3
A. (-2q)(-2q)(-2q) B. -2 ? q ? 3 C. (-2)(-2)(-2)(q) D. -2 ? q ? q ? q