3 years ago

True or False?

Mathematics

2 answers:

Natalka [10]3 years ago

7 0

I think it’s true. If I’m right give me brainiest plz!

bagirrra123 [75]3 years ago

6 0

Where is the problem?

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Find an equation of the circle that has center (-4,3) and passes through (6,-4).

kumpel [21]

Answer:

$(x+4)^2+(y-3)^2=149$

Step-by-step explanation:

The equation of a circle is $(x-h)^2+(y-k)^2=r^2$ where $(h,k)$ is the center of the circle and $r$ is the radius of the circle.

Given that $(h,k)\rightarrow(-4,3)$ and it passes $(6,-4)$ , their distance between each other must the radius of the circle, so we can use the distance formula to find the radius:

$d=\sqrt{(y_2-y_1)^2+(x_2-x_1)^2}\\\\d=\sqrt{(-4-3)^2+(6-(-4))^2}\\\\d=\sqrt{(-7)^2+10^2}\\\\d=\sqrt{49+100}\\\\d=\sqrt{149}$

Therefore, if the length of the radius is $r=\sqrt{149}$ units, then $r^2=149$ , making the final equation of the circle $(x+4)^2+(y-3)^2=149$

5 0

2 years ago

Which of the following points is not collinear with (3, 6) and (-2, -9)?

Lilit [14]

Its B, cause it’s collinear

5 0

3 years ago

Read 2 more answers

What is three equations that x equals 5

Evgen [1.6K]

X+3=8
x+4=9
x+2=7
mark me brainliest if the answer is correct, thank you in advance :)

4 0

2 years ago

Name the property of equality that justifies: If x = 3 and y = x + 5, then y = 8

Mice21 [21]

Substitution. This is because we put in x as 3 in the equation.

Hope this helps!

4 0

3 years ago

Kody made a deposit into an account that earns 4% annual compound interest. After 24 months, the value of his account was $2,163

Elanso [62]

Answer:

Kody made an initial deposit of $2,000

Step-by-step explanation:

brainly.com/question/15224194

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2 years ago