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2 years ago

What is the equation of the circle with center (4, 4) that passes through the point (10, 14)?

Mathematics

2 answers:

zhuklara [117]2 years ago

7 0

Answer:

The answer to your question is (x - 4)² + (y - 4)² = 136

Step-by-step explanation:

Data

C (4, 4)

P (10, 14)

Process

1.- Calculate the distance from the center to the point

dCP = $\sqrt{(10 - 4)^{2} + (14 - 4)^{2}}$

dCP = $\sqrt{6^{2} + 10^{2}}$

dCP = $\sqrt{36 + 100}$

dCP = $\sqrt{136}$

2.- Calculate the equation of the circle

( x - 4)² + (y - 4)² = ( $\sqrt{136}$ )²

(x - 4)² + (y - 4)² = 136

Anna11 [10]2 years ago

3 0

Answer:

(x - 4)² + (y - 4)² = 136 is the answer.

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2(x - 1) = x + 10<br> x<br> =

aev [14]

In the equation, x = 12

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2 years ago

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Write an equation in standard form for the line, where the points (-2, -1) and (0, 4) are on the line

DedPeter [7]

Answer:

An equation in standard form for the line is:

$\frac{5}{2}x-y=-4$

Step-by-step explanation:

Given the points

(-2, -1) and (0, 4)

The slope between two points

$\mathrm{Slope\:between\:two\:points}:\quad \mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}$

$\left(x_1,\:y_1\right)=\left(-2,\:-1\right),\:\left(x_2,\:y_2\right)=\left(0,\:4\right)$

$m=\frac{4-\left(-1\right)}{0-\left(-2\right)}$

$m=\frac{5}{2}$

Writing the equation in point-slope form

As the point-slope form of the line equation is defined by

$y-y_1=m\left(x-x_1\right)$

Putting the point (-2, -1) and the slope m=1 in the line equation

$y-\left(-1\right)=\frac{5}{2}\left(x-\left(-2\right)\right)$

$y+1=\frac{5}{2}\left(x+2\right)$

$y=\frac{5}{2}x+4$

Writing the equation in the standard form form

As we know that the equation in the standard form is

$Ax+By=C$

where x and y are variables and A, B and C are constants

$y=\frac{5}{2}x+4$

$\frac{5}{2}x-y=-4$

Therefore, an equation in standard form for the line is:

$\frac{5}{2}x-y=-4$

7 0

2 years ago

It takes Evan 6 3/4 hours to mow 3 lawns. it takes him 2 1/3 hours to mow Mr. Smiths yard and 1 3/4 hours to mow Ms. Lee's yard.

Ratling [72]

Answer: $2\frac{2}{3}\ hours$

Step-by-step explanation:

Given: The total time taken by Evan to mow the 3 lawns = $6\frac{3}{4}=\frac{27}{4}\ \text{hours}$

Time taken by Evan to mow the first lawn = $2\frac{1}{3}=\frac{7}{3}\ \text{hours}$

Time taken by Evan to mow the second lawn = $1\frac{3}{4}=\frac{7}{4}\ \text{hours}$

Now,Time taken by Evan to mow the third lawn = $\frac{27}{4}-\frac{7}{3}-\frac{7}{4}$

⇒Time taken by Evan to mow the third lawn = $\frac{81-28-21}{12}$

⇒Time taken by Evan to mow the third lawn = $\frac{32}{12}=\frac{8}{3}=2\frac{2}{3}\ hours$

Hence, the time taken by Evan to mow the third lawn = $2\frac{2}{3}\ hours$

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3 years ago

Check picture, 7th grade work.

mina [271]

The answer is 5 cm for the circumference of the smaller square

6 0

2 years ago

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9) v - 15 = -27 10) n + 16 = 9

Alik [6]

Answer:

9) v= -12

10) n= -7

Step-by-step explanation:

9) v - 15 = -27

Add 15 from both sides

i.e. v - 15 + 15 = -27 + 15

v = -12

10) n + 16 = 9

Subtract 16 from both sides

i.e. n + 16 - 16 = 9 - 16

n = -7

Hope this helps!!!

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3 years ago