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kondor19780726 [428]
3 years ago
10

A circle is centered at (-6,3) and has a radius of 11. Where does the point (3,-3) lie?

Mathematics
1 answer:
makvit [3.9K]3 years ago
8 0

As we can see that the distance of the given point is less than the radius,

The point lies inside the circle

Step-by-step explanation:

We will use the distance formula to find the distance between the centre of the circle and the given point. If the distance is less than the radius, the point lies inside the circle. If the distance is equal to the radius then the point lies on the circle. If the distance is greater than the radius of the circle, then the point will be out of the circle.

Given

(-6,3) = (x1,y1)

(3,-3) = (x2, y2)

The distance formula is:

d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}\\= \sqrt{(3-(-6))^2+(-3-3)^2}\\=\sqrt{(3+6)^2+(-6)^2}\\=\sqrt{(9)^2+36}\\=\sqrt{81+36}\\=\sqrt{117}\\=10.81

As we can see that the distance of the given point is less than the radius,

The point lies inside the circle

Keywords: Circle, Equation of circle

Learn more about circle at:

  • brainly.com/question/11280112
  • brainly.com/question/11286417

#LearnwithBrainly

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The temperature dropped 2 °F every hour for 9 hours. What was the total number of degrees the temperature changed in the 9 hours
Paul [167]

Answer: 18

Step-by-step explanation:

2 degrees per hour

9 hours

1hour = 2 degrees

2hours= 4 degrees

3hr= 6 degrees

4hr= 8 degrees

5hr=10 degrees

6hr= 12 degrees

7hr= 14 degrees

8hr= 16 degrees

9hr= 18 degrees

So you are basically doing 2x9 to get your answer

4 0
3 years ago
Find the value of the combination. From a committee consisting of 8 men and 5 women, a subcommittee is formed consisting of 4 me
Alex787 [66]

Out of 8 men, 4 can be selected and lined up in (8 x 7 x 6 x 5) = 1,680 ways.
But within that number, each group of 4 appears in (4 x 3 x 2) = 24 orders.
So there are (1,680 / 24) = 70 different groups of men.

Out of 5 women, 3 can be selected and lined up in (5 x 4 x 3) = 60 ways.
But within that number, each group of 3 appears in (3 x 2) = 6 orders.
So there are (60 / 6) = 10 different groups of women.

Each different group of 70 men can be joined by any of the 10 groups
of women. So the total number of possible subcommittees is (70 x 10) = 700 . 

5 0
3 years ago
A veterinarian wants to know if pit bulls or golden retrievers have a higher incidence of tooth decay at the age of three. The v
BigorU [14]

Answer: B) [-0.0332,0.1332]

Step-by-step explanation: <u>Confidence</u> <u>Interval</u> is an interval where we can be a percentage sure the true mean is.

The confidence interval for a difference in population proportion is calculated following these steps:

First, let's find population proportion for each population:

p_{1}=\frac{30}{120}=0.25

p_{2}=\frac{32}{160}=0.2

Second, calculate standard deviation for each proportion:

\sigma_{1}=\sqrt{\frac{0.25(0.75)}{120} } = 0.0395

\sigma_{2}=\sqrt{\frac{0.2(0.8)}{160} } = 0.0316

Now, we calculate standard error for difference:

SE=\sqrt{\sigma_{1}^{2}+\sigma_{2}^{2}}

SE=\sqrt{0.0395^{2}+0.0316^{2}}

SE = 0.0505

The z-score for a 90% CI is 1.645.

Then, confidence interval is

p_{1}-p_{2} ± z-score.SE

0.25-0.2 ± 1.645(0.0505)

0.05 ± 0.0831

The limits of this interval are:

inferior: 0.05 - 0.0831 = -0.0332

superior: 0.05 + 0.0831 = 0.1332

The 90% confidence interval for the difference in the population proportion of pit pulls and golden retrievers is [-0.0332,0.1332].

8 0
3 years ago
What is -184.4 rounded to the nearest tenth place
Deffense [45]

Answer:

-184

Step-by-step explanation:

The 0.4 isn't 5 or greater so it won't be rounded up as 1.

4 0
3 years ago
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The answer is B.
The shaded area includes points less than the line, and the slope is negative. Also, the Y intercept is positive 5.
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