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3 years ago

What is the difference of 31 - (-9) =

Mathematics

1 answer:

Licemer1 [7]3 years ago

5 0

Answer:

Step-by-step explanation:

31 + 9=40

cause u need to change the negative into positve and change the minus into plus

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Tara made a rectangular fence around her rose so it would not get hurt by her dog. She put a fence around the rose that was 4 ft

sasho [114]

24, i belive hope it helps

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4 years ago

1. Determine the degree of homogeneity of the function S(x,y) = x^2 y + xy^2, and show that Euler's Theorem holds. 24 zvy

Dmitrij [34]

Answer:

Degree $k=3$

Step-by-step explanation:

The function that you have is a homogeneous function of degree $k=3$ . In fact, if $\lambda \in \mathbb{R}$ and $(x,y) \in \mathbb{R}^{2}$ we have that:

$s(\lambda x, \lambda y)=(\lambda y)(\lambda x)^{2}+(\lambda x)(\lambda y)^{2}=\lambda^{3}x^{2}y+\lambda^{3}xy^{2}=\lambda^{3}s(x,y)$

To verify that the Euler Theorem holds we need to show that:

$x\frac{\partial s}{\partial x}+y\frac{\partial s}{\partial y}=3 s(x,y)$ .

To do that let's compute the partial derivatives:

$\frac{\partial s}{\partial x}=2xy+y^2$

$\frac{\partial s}{\partial y}=x^2+2xy$

Then,

$x\frac{\partial s}{\partial x}+y\frac{\partial s}{\partial y}=2x^{2}y+xy^{2}+yx^{2}+2xy^{2}=3xy^{2}+3x^{2}y=3(x^{2}y+xy^{2})=3s(x,y).$

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4 years ago

Oscar has a 200-page book to read. he reads 4 pages every 5 minutes. what is his reading rate

Andrei [34K]

48 pages per hour. The reason is because you would take 4/5 and get .8 pages per minuet so then it would be .8*60 to get 48. (You would multiply by 60 because 60 minuets in an hour.) So your answer would be 48 pages per hour

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4 years ago

What type of quadrilateral is it The vertices of a quadrilateral are (–1, 2), (5, 2), (–1, –3), and (5, –3).

frozen [14]

On the coordinate plane, all of the points lined up in a shape of a square. So a square it is.

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3 years ago

I will make you Brainliest if you know what fraction is equal to 1.5

Igoryamba

Answer:

3/2

Step-by-step explanation:

There are a lot of fractions that equal 1.5, but if you're asking for the most simplified fraction, 3/2 is the answer.

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3 years ago