Evaluate the integral.
dx
A. - 
(x4 + 6)-1/2 + C
B. 
(x4 + 6)3/2 + C
C. 
(x4 + 6)3/2 + C
D. 
(x4 + 6)3/2 + C
Answer: C
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Solve the problem.The spring of a spring balance is 5.0 in. long when there is no weight on the balance, and it is 8.3 in. long with 9.0 lb hung from the balance. How much work is done in stretching it from 5.0 in. to a length of 14.6 in.?
A. 130 in.-lb B. 13 in.-lb C. 260 in.-lb D. 17 in.-lb
Indicate whether the statement is true or false.When graphing a system of two linear inequalities, the final shaded region is made up of all points which belong to the graphs of either of the individual inequalities.
A. True B. False
Factor completely.-80y3 - 92y2 - 24y
A. -4(4y2 + 3)(5y + 2) B. y(-16y - 12)(5y + 2) C. y(4y + 3)(-20y - 8) D. -4y(4y + 3)(5y + 2)
For problems 4-15, perform the indicated operations and simplify.
A. 
B. 
C. 
D. 
E. none of these