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3 years ago

What is 1+1? (hard question) BONUS (to get brainliest) - Why is building a wall good to make America Great Again?

Mathematics

2 answers:

Basile [38]3 years ago

8 0

2....... and just because we can thats why

like look at china they built one after all ;P

Nostrana [21]3 years ago

5 0

1 +1=2 I had to think really hard in this question :,)

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Do participate Cora Alaskan owl Bruce

ELEN [110]

you are supposed to ask a real question aren't you, I'm not sure if that is a question

8 0

3 years ago

If and represent rational expressions and b0 and y0, what is true of their product? Select three options.

o-na [289]

Answer:

Their product will be rational Can I see the answer options?

Step-by-step explanation:

3 0

3 years ago

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What is X the two numbers are 46 and 71

tino4ka555 [31]

The answer would be 63 bc 46+71= 117 then a triangle usaually equals 180 so 180 -117=63!!

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3 years ago

In this problem we consider an equation in differential form Mdx+Ndy=0. (4x+2y)dx+(2x+8y)dy=0 Find My= 2 Nx= 2 If the problem is

zheka24 [161]

Answer:

$f(x,y)=2x^2+4y^2+2xy=C_1\\\\Where\\\\y(x)=\frac{1}{4} (-x\pm \sqrt{-7x^2+C_1} )$

Step-by-step explanation:

Let:

$M(x,y)=4x+2y\\\\and\\\\N(x,y)=2x+8y$

This is and exact equation, because:

$\frac{\partial M(x,y)}{\partial y} =2=\frac{\partial N}{\partial x}$

So, define f(x,y) such that:

$\frac{\partial f(x,y)}{\partial x} =M(x,y)\\\\and\\\\\frac{\partial f(x,y)}{\partial y} =N(x,y)$

The solution will be given by:

$f(x,y)=C_1$

Where C1 is an arbitrary constant

Integrate $\frac{\partial f(x,y)}{\partial x}$ with respect to x in order to find f(x,y):

$f(x,y)=\int\ {4x+2y} \, dx =2x^2+2xy+g(y)$

Where g(y) is an arbitrary function of y.

Differentiate f(x,y) with respect to y in order to find g(y):

$\frac{\partial f(x,y)}{\partial y} =2x+\frac{d g(y)}{dy}$

Substitute into $\frac{\partial f(x,y)}{\partial y} =N(x,y)$

$2x+\frac{dg(y)}{dy} =2x+8y\\\\Solve\hspace{3}for\hspace{3}\frac{dg(y)}{dy}\\\\\frac{dg(y)}{dy}=8y$

Integrate $\frac{dg(y)}{dy}$ with respect to y:

$g(y)=\int\ {8y} \, dy =4y^2$

Substitute g(y) into f(x,y):

$f(x,y)=2x^2+4y^2+2xy$

The solution is f(x,y)=C1

$f(x,y)=2x^2+4y^2+2xy=C_1$

Solving y using quadratic formula:

$y(x)=\frac{1}{4} (-x\pm \sqrt{-7x^2+C_1} )$

4 0

4 years ago

Suppose a population contains 80,000 people. All else being equal, a study based on a population sample that includes which of t

Helga [31]

I'd say A. 8000, because you'd get the most answers and the biggest variety in answers for a more accurate sample.

6 0

3 years ago

Read 2 more answers