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3 years ago

4x - 10y = 12 help plz

Mathematics

1 answer:

vampirchik [111]3 years ago

8 0

Mark brainliest please

Hope this helps you

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People are randomly chosen from a group of 7 boys and 5 girls. Determine which scenario is more likely to happen.

andre [41]

Answer:

Step-by-step explanation

Well the boys can be chosen again all in a row but the girls cdan't therfore the answer is A

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3 years ago

When looking at the median of a data set, what information do you get when looking at the median?

cestrela7 [59]

You get the middle of all the data while looking at the median of a data set!

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3 years ago

PLEASE HELPP thank youuu

nydimaria [60]

Answer:

#3) 2/5×2= 4/5 full bucket per one hour.

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3 years ago

What is the square root of x if x = 25?

scoundrel [369]

Answer:

5 is your answer

Step-by-step explanation:

The $\sqrt{25}$ will equal to 5, because $5^2$ = 25

7 0

3 years ago

Read 2 more answers

Consider the following equation. f(x, y) = y3/x, P(1, 2), u = 1 3 2i + 5 j (a) Find the gradient of f. ∇f(x, y) = Correct: Your

BaLLatris [955]

$f(x,y)=\dfrac{y^3}x$

a. The gradient is

$\nabla f(x,y)=\dfrac{\partial f}{\partial x}\,\vec\imath+\dfrac{\partial f}{\partial y}\,\vec\jmath$

$\boxed{\nabla f(x,y)=-\dfrac{y^3}{x^2}\,\vec\imath+\dfrac{3y^2}x\,\vec\jmath}$

b. The gradient at point P(1, 2) is

$\boxed{\nabla f(1,2)=-8\,\vec\imath+12\,\vec\jmath}$

c. The derivative of $f$ at P in the direction of $\vec u$ is

$D_{\vec u}f(1,2)=\nabla f(1,2)\cdot\dfrac{\vec u}{\|\vec u\|}$

It looks like

$\vec u=\dfrac{13}2\,\vec\imath+5\,\vec\jmath$

so that

$\|\vec u\|=\sqrt{\left(\dfrac{13}2\right)^2+5^2}=\dfrac{\sqrt{269}}2$

Then

$D_{\vec u}f(1,2)=\dfrac{\left(-8\,\vec\imath+12\,\vec\jmath\right)\cdot\left(\frac{13}2\,\vec\imath+5\,\vec\jmath\right)}{\frac{\sqrt{269}}2}$

$\boxed{D_{\vec u}f(1,2)=\dfrac{16}{\sqrt{269}}}$

7 0

4 years ago