Graph the polar equation.r = 
A. 
B. 
C. 
D. 
Answer: C
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Simplify the expression by using the order of operations.2 ? 6 + 2(7 + 3) + 4
A. 33 B. 40 C. 36 D. 164
Find the center (h, k) and radius r of the circle with the given equation. x2 + y2 + 4x - 12y + 40 = 49
A. (h, k) = (6, -2); r = 7 B. (h, k) = (-2, 6); r = 7 C. (h, k) = (-6, 2); r = 49 D. (h, k) = (2, -6); r = 49
Simplify the radical expression. Assume that all variables represent nonnegative real numbers.(
- 
)(
- 
)
A. x
- x
- 2
+ 5
B. 
- 
- 2
+ 5
C. 
- 
- 10
+ 5
D. 
- 
- 4
+ 25
Solve the problem.Assume that the mathematical model C(x) = 14x + 170 represents the cost C, in hundreds of dollars, for a certain manufacturer to produce x items. How many items x can be manufactured if the cost is to be kept between $409,000 and $605,000?
A. {x 
420 < x < 560}
B. {x 
450 < x < 600}
C. {x 
300 < x < 450}
D. {x 
280 < x < 420}