2 years ago

Giving deserved thank yous, ratings, and brainliest. The topic is dot plots

Mathematics

1 answer:

DanielleElmas [232]2 years ago

5 0

Answer: 18

Step-by-step explanation:

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A company designs T-shirts. They charge $40 for set-up cost plus $12 per shirt. write the slope intercept form.

Dovator [93]

Answer: y= 12x +40

Step-by-step explanation:

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2 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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2 years ago

You heard it as a FRACTION! please answer this lol I'm clueless :'D

uysha [10]

Answer:

$\frac{a}{b + 2}$

___

b + 2

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2 years ago

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he measurements of two sides of a triangle are 4 cm and 20 cm. What could be a measurement of the third side of the triangle?

hodyreva [135]

Answer:

Step-by-step explanation:

every triangle adds up to 180 sort of, in this case, turn 4 into 40. 40+20=60 so add 80 to be 180!!!

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1 year ago

HELP PLEASE! ASAP ! <br> These 2 questions !

Vlad1618 [11]

Answer: 9 is true, 10 is false

Step-by-step explanation:

The key to these problems is to make sure the sequence of the letters is equal: 10 would be correct if they said DF ≅XZ

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1 year ago