4 years ago

Can someone help me with these questions

Mathematics

1 answer:

Zepler [3.9K]4 years ago

3 0

Answer:

1. 1/40

2.9/50

3.1/5 =0.2= 20%

i dont know the rest sorry , but is that a dog behind it the paper ?

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Could someone explain this to me?

Ilya [14]

This is a simple differentiation problem. Let's start by taking the derivative of both sides (with respect to x):
$5y^4\frac{dy}{dx}+6y^2x+6x^2y\frac{dy}{dx}+20x^3 = 0$

Simplify:
$\frac{dy}{dx} (5y^4+6x^2y) + 6y^2x+20x^3 = 0$

Solve for dy/dx:
$\frac{dy}{dx} = \frac{-6y^2x-20x^3}{5y^4+6x^2y}$

Now, plug in the given points:
$\frac{dy}{dx} = \frac{-6(2)^2(-1)-20(-1)^3}{5(2)^4+6(-1)^2(2)} = \frac{24+20}{80+12}$

Further simplification gives:
$\frac{dy}{dx}|_{(2,-1)} =\frac{44}{92} = \frac{11}{23}$

So, your answer is 11/23 or B.

7 0

4 years ago

I need help on this I will give brainlist help it will mean a lot this is my last math problem help me!

Vsevolod [243]

The correct answer will be B

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4 years ago

Prime factorization of 64007

dolphi86 [110]

Answer:

you have 1 only

1*64007