Use a calculator to find the approximate value of the expression. Round the answer to two decimal places.cos 
A. 1.00
B. 1.06
C. 0.56
D. 0.62
Answer: D
Mathematics
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Find the regression line for the given data. Round to two decimal places, if necessary.
A. y = 10x - 3 B. y = 9x - 3 C. y = 9.8x - 2.6 D. y = 9.2x - 2.1
Mathematics
Solve the equation.
?
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If an answer is not exact, give the answer to four decimal places.
Fill in the blank(s) with the appropriate word(s).
Mathematics
Determine whether the parabola opens upward or downward.y = 3x2 - 2x - 7
A. upward B. downward
Mathematics
Solve the inequality and graph the solution set.-15 < 8x + 9 and 8x - 8 < 0
A. 
B. 
C. 
D. 
Mathematics