Find the midpoint of the segment joining the points (7, -6) and (15, -2).
(a) (-4, 11)
(b) (-8, -4)
(c) (11, -4)
(d) (-4, -10)
(e) (22, -8)
(c) (11, -4)
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Solve the problem.A circular pond is being installed in the corner of a yard, as shown. The installer needs to know the value of x in feet. Find x to the nearest tenth of a foot. 
?a = 47 ft
A. 55.1 ft B. 55.3 ft C. 54.7 ft D. 54.4 ft
Solve the problem.The cost of manufacturing clocks is given by C(n) = 4(n + 100)1/2, where C is the total cost and n is the number of clocks produced. What is the total cost when no clocks are produced?
A. $20 B. $400 C. $4 D. $40
Factor the trinomial completely.3x5 + 6x4 - 45x3
A. 3x3(x2 + 2x - 15) B. x3(x + 5)(3x - 9) C. 3x3(x + 5)(x - 3) D. x3(3x + 15)(x - 3)
Write the compound inequality as an absolute value inequality. Do not simplify.y ? -2 < or y ? 2
A. 
? -2 < or 
? 2
B. 
> 2
C. 
? 2
D. 
? 2