Find: a. The center and radius of the circle. b. The x- and y-intercepts of the graph of the circle.x2 + y2 + 6 = 0
A. a. center = (0, 0); radius = 6
b. (-
, 0), (
, 0), (0, 
), (0, -
)
B. a. center = (0, 0); radius = 
b. (
, 0), (0, 
)
C. a. center = (0, 0); radius = 
b. (-
, 0), (
, 0), (0, 
), (0, -
)
D. a. ?
b. ?
Answer: D
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Convert the units using unit fractions.9 min = 
sec
A. 216 B. 540 C. 270 D. 108
Determine whether the equation is linear.-43y + 
= 0
A. Not Linear B. Linear
Solve.In retailing, the retail price P of an item can be computed using the equation 
where C is the wholesale cost of the item and M is the amount of markup. A retailer sells a game for $36. If his wholesale cost for the game was $22, what was his markup?
A. $14 B. $13 C. $15 D. $58
Use the five-step strategy for solving word problems to find the number or numbers described in the following exercise.When 5 times a number is subtracted from 7 times the number, the result is 22. What is the number?
A. -11 B. 2 C. 11 D. 0.5