Provide an appropriate response.If we use u = x2 + 2 as a substitution to find 
then which of the following would be a correct result?
A. 
B. 
C. 
D. None of the above
Answer: D
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Solve each equation for y as an expression in x. Then equate the expressions to obtain an equation in the variable x. Finally, solve the equation for the unknown x.y - 37x = -36; y - 7x = 9
A. 
B. 
C. 
D. 
Find the roots of the equations.(4m - 1)2 - 10(4m - 1) + 21 = 0
A. 6, 
B. 2, 1
C. - 
, - 
D. - 2, - 1
Find the probability of the event.A bag contains 3 red marbles, 8 blue marbles, and 7 green marbles. What is the probability of choosing a blue marble when one marble is drawn?
A. 
B. 
C. 
D. 
Solve.The maximum distance d in kilometers that you can see from a height h in meters is given by the formula 
How high above the ground must you be to see 60 kilometers? (Round to the nearest tenth of a meter.)
A. 293.9 m B. 17.1 m C. 27.1 m D. 1028.6 m