Solve each proportion for the given variable.
= 
A. 2
B. 35
C. 24
D. 4
Answer: B
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Compute r, the linear coefficient of correlation, for the given data.Two different tests are designed to measure employee productivity and dexterity. Several employees are randomly selected and tested with these results.
A. 0.115 B. 0.471 C. 0.986 D. -0.280
Establish the identity.cos
= -sin x
What will be an ideal response?
Solve the inequality using the x-intercept method or the intersection-of-graphs method. Express the solution set in interval notation.8y - 5 ? 7y - 13
A. (8, ?) B. (-?, 8) C. (-?, -8] D. [-8, ?)
Solve the problem.The sum of a student's three scores is 230. If the first is 19 points more than the second, and the sum of the first two is 23 more than twice the third, then what was the first score?
A. 69 B. 90 C. 50 D. 71