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Brilliant_brown [7]

3 years ago

12

Point A(3,2) is on a circle whose center is C(−2,3). What is the radius of the circle?

1 answer:

goldfiish [28.3K]3 years ago

6 0

Answer:

The radius of the circle is √26.

Step-by-step explanation:

Since point A is on the circle, the distance between that point and the center of the circle is equal to the radius.

To find the distance between two points, the following equation should be used:

$x^{2} =(x_{A}- x_{C}) ^{2} + (y_{A}- y_{C}) ^{2}$

Replacing the numeric values:

$r^{2} =(3- (-2)) ^{2} + (2-3) ^{2}\\r^{2} =(5) ^{2} + (-1) ^{2}\\r=\sqrt{26}$

The radius of the circle is √26.

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Find a formula for the nth term of the sequence in terms of n. the sequence 1, 0, 1, 0, 1, ...

timofeeve [1]

If the sequence is like this, you actually don’t have to formulate a formula. You just have to formulate a principle. You just have to remember that when n is an odd number, the value would always be 1. If the n is an even number, the value would always be 0.

3 0

2 years ago

Help?pleaseeee?someone?anyone?

slamgirl [31]

Answer:

the answer is 96

Step-by-step explanation:

$(-10)^{2}$ - 9 $(\frac{1}{3} )^{2}$ -3

100- $\frac{9}{9}$ -3

100-1-3

96

6 0

3 years ago

Suppose that a group of 10 students are to be assigned to four dorm rooms: a single, a double, a triple and a quad. How many way

Nesterboy [21]

Answer:

Total number of ways to select all sstudent to make assignment = 10×36×70×1 = 25200

Step-by-step explanation:

We have given number of students = 10

These 10 students are assigned to four dorm rooms a single, a double, a triple and a quad

So number of ways to assigned single student $=^{10}C_1=\frac{10!}{1!9!}=10\\$

Now left student = 10 -1 = 9

So number of ways to assigned double student $=^{9}C_2=\frac{9!}{2!7!}=36$

Now left student = 9-2 = 7

So number of ways to assigned triple student $=^{7}C_3=\frac{7!}{2!4!}=$ =70

Now left student = 7 - 3 = 4

So number of ways to assigned quad student $=^{4}C_4=\frac{4!}{4!0!}=1$

So total number of ways to select all sstudent to make assignment = 10×36×70×1 = 25200

6 0

3 years ago

Need help if anybody can help.

Darina [25.2K]

Answer:

46.5

Step-by-step explanation:

Of all straight angles have 180 degrees in them.

So, to find x we need to form this equation:

x + 65 + x - 22 = 180

2x + 43 = 180

2x = 180-43

2x = 137

68.5 degrees = x

68.5-22 = 46.5 degrees.

m<CBD = 46.5 degrees.

m<GBF = also 46.5 degrees because it is a vertical angle to <46.5 degrees.

8 0

2 years ago

Giving Brainiest! please help mee ^^ :)

Anastaziya [24]

Answer:

6*6*5/3=180/3=60

thus the answer is 60

4 0

2 years ago