3 years ago

Foil pattern (8k+6)(k-5)

Mathematics

1 answer:

Anton [14]3 years ago

5 0

This is a picture of my work. Hope it is easy to understand.

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andre [41]

The square root of 121 is 11 because 11 times 11 is 121.

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4 years ago

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Which of the following lists does not include all the factors of the number?

lianna [129]

21: The factors of 21 are 1,3,7,21

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3 years ago

You can buy DVDs at a local store for $15.49 each. You can buy them at an online store for $13.99 each plus $6 for shippimg. How

NeTakaya

15.49x = 13.99x + 6
15.49x - 13.99x = 6
1.50x = 6
x = 6 / 1.50
x = 4 <=== u can buy 4 DVD's for the same amount

15.49 * 4 = 61.96
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3 years ago

How do you work out the prince of a gallon of gas dropped from the summer high price of $3.50 to the winter low price of $2.87.

seraphim [82]

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Step-by-step explanation:

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Find the second derivative of 2x^3-3y^2=8

Umnica [9.8K]

Answer:

$\frac{d^2y}{dx^2}=\frac{x(2y-x^3)}{y^3}$

Step-by-step explanation:

Find the first implicit derivative using implicit differentiation

$2x^3-3y^2=8\\\\6x^2-6y\frac{dy}{dx}=0\\ \\-6y\frac{dy}{dx}=-6x^2\\ \\\frac{dy}{dx}=\frac{x^2}{y}$

Use the substitution of dy/dx to find the second derivative (d²y/dx²)

$\frac{d^2y}{dx^2}=\frac{(y)(2x)-(x^2)(\frac{dy}{dx})}{y^2}\\ \\\frac{d^2y}{dx^2}=\frac{2xy-(x^2)(\frac{x^2}{y})}{y^2}\\\\\frac{d^2y}{dx^2}=\frac{2xy-\frac{x^4}{y}}{y^2}\\\\\frac{d^2y}{dx^2}=\frac{x(2y-x^3)}{y^3}$

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3 years ago