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e-lub [12.9K]
3 years ago
6

A circle is centered at the point (5,-4) & passes through the point (-3,2).

Mathematics
1 answer:
maxonik [38]3 years ago
5 0

Equation of the circle:

(x-5)^2+(y+4)^2=100

Step-by-step explanation:

The equation of a circle is given by

(x-x_0)^2+(y-y_0)^2=r^2

where

(x_0,y_0) are the coordinates of the center of the circle

r is the radius of the circle

For the circle in this problem, we know that:

(5,4) are the coordinates of the center

We also know that the circle passes through the point (-3,2), therefore we can calculate the radius as the distance between the point on the circle and the center of the circle:

r=\sqrt{(-3-(5))^2+(2-(-4))^2}=\sqrt{(-8)^2+(6)^2}=\sqrt{64+36}=10

Therefore, the equation of the circle is:

(x-5)^2+(y-(-4))^2=10^2\\(x-5)^2+(y+4)^2=100

Learn more about circles:

brainly.com/question/4713715

brainly.com/question/3456442

brainly.com/question/3333996

#LearnwithBrainly

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Is 12 divisible by 3?​
pantera1 [17]

Answer:Numbers are divisible by 3 if the sum of all the individual digits is evenly divisible by 3. For example, the sum of the digits for the number 3627 is 18, which is evenly divisible by 3 so the number 3627 is evenly divisible by 3.

Step-by-step explanation:

5 0
3 years ago
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What is the value of x in the equation below?
denis23 [38]

Answer:

Step-by-step explanation:

Alright, lets get started.

The given equation is :

1+2e^{x+1}=9

Subtracting 1 in both sides

1+2e^{x+1}-1=9-1

2e^{x+1}=8

Dividing 2 in both sides

e^{x+1}=\frac{8}{2}

e^{x+1}=4

Taking log on both sides

loge^{(x+1)}=log4

(x+1)loge=log4

Plugging the value of log e as 1

x+1=log4

x=log4-1   ..................... Answer

Hope it will help :)

6 0
3 years ago
Need help asap!!!
Verizon [17]

Answer:

4 ; 24

Step-by-step explanation:

A.)

Fixed fee, x = $5

Hourly rate, y = $3

Total rent fee, t= $17

Number of rent hours :

$17 = $5 + $3y

17 - 5 = 3y

12 = 3y

y = 12/3

y = 4 hours

B.)

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(97 - 1) / 4

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= 24 students

8 0
3 years ago
Which expressions are polynomials? Select each correct answer. x2−x√+2 2 + s 4x³ + y​
katen-ka-za [31]

Answer:

Answers are

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Step-by-step explanation:

7 0
3 years ago
A university interested in tracking its honors program believes that the proportion of graduates with a GPA of 3.00 or below is
insens350 [35]

Answer:

The value of the test statistic and its associated p-value at the 5% significance level are -1.54 and 0.9382, respectively.

Step-by-step explanation:

A university interested in tracking its honors program believes that the proportion of graduates with a GPA of 3.00 or below is less than 0.16.

This means that the null hypothesis is:

H_{0}: p \geq 0.16

Testing this hypothesis, means that the alternate hypothesis is:

H_{a}: p > 0.16

The test statistic is:

z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}

In which X is the sample mean, \mu is the value tested at the null hypothesis, \sigma is the standard deviation and n is the size of the sample.

0.16 is tested at the null hypothesis:

This means that \mu = 0.16, \sigma = \sqrt{0.16*0.84}

In a sample of 200 graduates, 24 students have a GPA of 3.00 or below.

This means that n = 200, X = \frac{24}{200} = 0.12

Value of the test statistic:

z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}

z = \frac{0.12 - 0.16}{\frac{\sqrt{0.16*0.84}}{\sqrt{200}}}

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Pvalue:

The pvalue is the probability of finding a sample mean above 0.12, which is 1 subtracted by the pvalue of z = -1.54.

Looking at the z-table, z = -1.54 has a pvalue of 0.0618

1 - 0.0618 = 0.9382

The value of the test statistic and its associated p-value at the 5% significance level are -1.54 and 0.9382, respectively.

6 0
3 years ago
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