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Effectus [21]
3 years ago
6

Which of the following circles have their centers on the x-axis? Check all that apply.

Mathematics
1 answer:
Alexeev081 [22]3 years ago
7 0

Answer: Option A and Option D

Step-by-step explanation:

By definition the general equation of a circle has the following form

(x-h)^2+ (y-k)^2=r^2

Where r is the radius and the point (h, k) is the center of the circle

All points that are on the x axis have the following form:

(h, 0)

Therefore all the circles that have their centers on the x axis will have a value of k = 0.

Identify among the options all those equations that have a value of k = 0

The circles that have their center on the x axis are option A and option D

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Answer:

It will take him about 13 houses to sell the 5 candy bars.

Pat has an 18% chance of selling his last candy in the 11th house.

Step-by-step explanation:

Since Pat is required to sell candy bars to raise money for the 6th grade field trip, and there is a 40% chance of him selling a candy bar at each house, and he has to sell 5 candy bars in all, to determine the number of houses it takes and determine the probability he sells his last candy bar at the 11th house, the following calculations must be performed:

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