Find the correlation coefficient.The test scores of 6 randomly picked students and the number of hours they prepared are as follows: 
A. -0.6781
B. 0.6039
C. -0.2241
D. 0.2015
Answer: B
Mathematics
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Find the exact value of the expression.
A. 
B. 
C. 
D. 2
Mathematics
Multiply.
A. 8.256 B. 0 C. 0.4592 D. 8
Mathematics
Find the slope and y-intercept of the line.12x - 6y = 72
A. slope = 2; y-intercept = -12
B. slope = 
; y-intercept = 6
C. slope = 12; y-intercept = 72
D. slope = - 2; y-intercept = 12
Mathematics
Solve the inequality. Graph the solution set.-9x - 7 > -10x - 18
A. {x 
}
B. {x 
}
C. {x 
}
D. {x 
}
Mathematics