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3 years ago

Can someone please help me???!!!

Mathematics

1 answer:

Ksju [112]3 years ago

5 0

Answer:

I can't show you all of the work but you can use this to find the answer

https://www.mathsisfun.com/geometry/circle-theorems.html

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Find the general solution of (x+3)y’=2y

gregori [183]

Answer:

$y=C(x+3)^2$

Step-by-step explanation:

We are given:

$\displaystyle (x+3)y^\prime=2y$

Separation of Variables:

$\displaystyle \frac{1}{y}\frac{dy}{dx}=\frac{2}{x+3}$

So:

$\displaystyle \frac{dy}{y}=\frac{2}{x+3} \, dx$

Integrate:

$\displaystyle \int\frac{dy}{y}=\int\frac{2}{x+3}\, dx$

Integrate:

$\displaystyle \ln|y|=2\ln|x+3|+C$

Raise both sides to e:

$|y|=e^{2\ln|x+3|+C}$

Simplify:

$|y|=(e^{\ln|x+3|})^2\cdot e^C$

So:

$|y|=C|x+3|^2$

Simplify:

$y=\pm C(x+3)^2=C(x+3)^2$

5 0

3 years ago

Explain in your own words what a dilation is.

Delicious77 [7]

Answer:

Dilation is the action of becoming or being made wider, larger, or more open.

hope this helps:)

plz can i get brainliest

7 0

3 years ago

-6x-14y=16 and -2x+7y=17 solve by elimination show the work

professor190 [17]

Answer:

(- 5, 1 )

Step-by-step explanation:

- 6x - 14y = 16 → (1)

- 2x + 7y = 17 → (2)

Multiplying (2) by - 3 and adding to (1) will eliminate the x- term

6x - 21y = - 51 → (3)

Add (1) and (3) term by term to eliminate x

0 - 35y = - 35

- 35y = - 35 ( divide both sides by - 35 )

y = 1

Substitute y = 1 into either of the 2 equations and solve for x

Substituting into (1)

- 6x - 14(1) = 16

- 6x - 14 = 16 ( add 14 to both sides )

- 6x = 30 ( divide both sides by - 6 )

x = - 5

solution is (- 5, 1 )

6 0

2 years ago

Solve for t: d=rt. I need some help.

Elena L [17]

D = rt
/r /r

D/r = T

*sample text*

7 0

3 years ago

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Each of the following correctly match an English phrase with a mathematical expression except _____. a number times seven, 7x a

kobusy [5.1K]

Answer:

D, a number divided by 7

3 0

3 years ago

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