Describe the solution set as an inequality and in interval notation. |7x + 6| + 3 ? 10
A. x ? - 
or x ? 
; 
,
? 
, 
B. - 
? x ? 
; 
C. x ? - 
or x ? 
; 
, 
? 
, 
D. - 
? x ? 
; 
Answer: B
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Find the volume of the solid generated by revolving the region about the given line.The region in the first quadrant bounded above by the line y = 2, below by the curve y = 
, and on the left by the y-axis, about the line x = -1
A. 
?
B. 
?
C. 
?
D. 
?
Solve the problem.Which of the following [A), B), C), or D)] is the most appropriate type of graph for representing a continuous random variable?
A. a pictogram B. a histogram C. a bar graph D. a pie chart E. none of these
Solve and graph. Write the solution set in interval notation.4x > 4 and x + 5 < 5
A. (-?, 0) ? (1, ?)
B. (-1, ?)
C. (0, 1)
D. ?
Solve the problem. Round to two decimal places unless otherwise indicated.If the average cost per unit C(x) to produce x units of plywood is given by C(x) = 
, what is the unit cost for 20 units?
A. $1.50 B. $15.00 C. $18.00 D. $45.00