Simplify the expression.(-3.8)2
A. -14.44
B. 14.44
C. 43.32
D. -7.6
Answer: B
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Solve the problem.The chorus has six sopranos and eight baritones. In how many ways can the director choose a quartet that contains at least one soprano?
A. 1001 ways B. 931 ways C. 986 ways D. 1071 ways
Solve the problem.Find the side length of a square with the same perimeter as a equilateral triangle with side 4 cm.
A. 6 cm B. 5.33 cm C. 1 cm D. 3 cm
Provide an appropriate response.Find the perimeter of the given figure. 
A. 20 in. B. 72 in. C. 40 in. D. 36 in
Use the REGRESSION feature on a graphing calculator.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. 
Use linear regression to find a linear function that predicts a student's course grade as a function of the number of hours spent in lab.
A. y = 88.6 - 1.86x B. y = 1.86 + 88.6x C. y = 0.930 + 44.3x D. y = 44.3 + 0.930x