Find the values that make the equation true.
= 
A. x = 6; y = -4; k = 9
B. x = -6; y = 6; k = 4
C. x = 9; y = -2; k = -4
D. x = 6; y = -6; k = -4
Answer: D
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Find the volume of the solid. Round to two decimal places when necessary.Right rectangular prism
A. 50.34 cm3 B. 1682.60 cm2 C. 168.26 cm3 D. 17.50 cm3
Solve the equation.
+ 3 = 8
A. {121} B. {25} C. ? D. {61}
Solve the problem.The paired data below consist of the test scores of 6 randomly selected students and the number of hours they studied for the test. By using linear regression, the following function is obtained: 
where x is number of hours studied and y is score on the test. Use this function to predict the score on the test of a student who studies 6 hours. 
A. 68.7 B. 76.3 C. 78.7 D. 73.7
Convert the units using unit fractions.105 sec = 
min
A. 1
B. 1050
C. 1
D. 6300