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3 years ago

12

Help me out pls i dont understand ill give brainiest to whoever answers correct

1 answer:

Sophie [7]3 years ago

8 0

A has right triangles also known for the 90 degree angle triangle.
In both they both have 90 degree and 4 sides

b has parallelograms and obtuse angles

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Suppose f(x, y) is a differentiable function of x and y and let g(r, s) = f (2rs, 8s − 2r). Use

worty [1.4K]

By the chain rule,

$\dfrac{\partial g}{\partial r} = \dfrac{\partial f}{\partial r} \\\\ ~~~~~ = \dfrac{\partial f}{\partial x} \dfrac{\partial x}{\partial r} + \dfrac{\partial f}{\partial y} \dfrac{\partial y}{\partial r} \\\\ ~~~~~ = 2 s \dfrac{\partial f}{\partial x} - 2 \dfrac{\partial f}{\partial y}$

where $x(r,s)=2rs$ and $y(r,s)=8s-2r$ .

If $r=2$ and $s=1$ , then

$x = 2\cdot2\cdot1 = 4$

$y=8\cdot1-2\cdot2 = 4$

so that

$g_r(2,1) = 2\cdot1 f_x(4,4) - 2 f_y(4,4) = 2\cdot2-2\cdot3 = \boxed{-2}$

5 0

1 year ago

Match each letter listed to the correct family of elements.

tekilochka [14]

The answers are

D --> Boron family

H --> Halogens

A --> Alkali metals

I --> Noble gases

Hope this helps

5 0

2 years ago

ILL MAKE BRAINLY??!!!?!!!!!

Leno4ka [110]

Answer:

Mizuki here to answer! B is the correct answer!

Step-by-step explanation:

1 - 0.4 = 0.6

2.1 x 0.6 = 1.26

6 0

2 years ago

Rewrite the quadratic function below in standard form y=3(x+2)(x-3)

babunello [35]

X=3(x^2-x_6)
3x^2-x-6

8 0

2 years ago

Read 2 more answers

What is the value of the expression shown below?

o-na [289]

Answer:

B

Step-by-step explanation:

1.6/0.2=8

10⁵-10²=10³

3 0

2 years ago