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3 years ago

BRAINLIEST FOR CORRECT ANSWER, IM FAILING SCHOOL AND NEED HELP ASAP. EVEN OFFICIAL HELP COUNTS

Mathematics

2 answers:

STALIN [3.7K]3 years ago

7 0

Answer:

Verifal angles I think but I'm not necessarily sure!!!

Natalija [7]3 years ago

5 0

They are vertical angles!!

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On October 2, 1991 , the Japanese yen was worth .0075 united States . At that time how much was 450 yen worth in united States d

lesya [120]

In order to find out how much 450 yen was worth in U.S dollars, all you have to do is multiply 0.0075 by 450.

0.0075 * 450 = 3.375

Meaning that 450 yen at the time was worth approximately $3.40 when rounded.

8 0

3 years ago

X = –6 3x − 2y = –6 solve using substetution <br> NEED FAST

kondaur [170]

Answer:

(x = -6), (y = -6)

(-6,-6)

Step-by-step explanation:

X=-6

3x - 2y = -6

3(-6) - 2y = -6

-18 - 2y = -6

What you do to one side, you do to the other. And when you take it over to the other side, you'll have to turn -18 into a positive 18.

-2y = 18 - 6

-2y = 12

Divide both sides by -2

y = -6

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4 years ago

Show that ( 2xy4 + 1/ (x + y2) ) dx + ( 4x2 y3 + 2y/ (x + y2) ) dy = 0 is exact, and find the solution. Find c if y(1) = 2.

fredd [130]

$\dfrac{\partial\left(2xy^4+\frac1{x+y^2}\right)}{\partial y}=8xy^3-\dfrac{2y}{(x+y^2)^2}$

$\dfrac{\partial\left(4x^2y^3+\frac{2y}{x+y^2}\right)}{\partial x}=8xy^3-\dfrac{2y}{(x+y^2)^2}$

so the ODE is indeed exact and there is a solution of the form $F(x,y)=C$ . We have

$\dfrac{\partial F}{\partial x}=2xy^4+\dfrac1{x+y^2}\implies F(x,y)=x^2y^4+\ln(x+y^2)+f(y)$

$\dfrac{\partial F}{\partial y}=4x^2y^3+\dfrac{2y}{x+y^2}=4x^2y^3+\dfrac{2y}{x+y^2}+f'(y)$

$f'(y)=0\implies f(y)=C$

$\implies F(x,y)=x^2y^3+\ln(x+y^2)=C$

With $y(1)=2$ , we have

$8+\ln9=C$

$\boxed{x^2y^3+\ln(x+y^2)=8+\ln9}$

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3 years ago

To determine the number of square centimeters in 8 square inches, multiply 8 by 6.45. true false

liraira [26]

The answer would be true

8 0

3 years ago

Read 2 more answers

Find the product.<br><br> (8-3z)(8+3z)

maks197457 [2]

Step-by-step explanation:

you can open the file I gave you now. the answer is there

7 0

3 years ago