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3 years ago

Help what’s the total lol i’m confused

Mathematics

1 answer:

belka [17]3 years ago

6 0

Answer:

Step-by-step explanation:

brainliest?

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Simplify each equation. Show steps. 1. 2(x + 3) + 4x 2. 4 + 2(x – 2) – 4 3. 6(2x – 4) – 3x 4. -6x – 4 + 5x + 7

Lelu [443]

Answer:

Step-by-step explanation:

1. 2x + 6 + 4x = 6x + 6

2. 4 + 2x - 4 - 4 = 2x - 4

3. 12x - 24 - 3x = 9x - 24

4. -x + 3

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3 years ago

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8 friends want to share 6 pizzas equally. How much pizza will each friend get?

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0.75

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4 years ago

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Describe how to find the number of weeks equal to 56 days

shutvik [7]

Umm im not sure maby do 7x diffrent numbers to find out idk sorry

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4 years ago

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Please help nowww!!!

Vaselesa [24]

Answer:

Step-by-step explanation:

6*12=72

12*8=96

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4 years ago

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Sin(x+2y)=cos(2x -y)

patriot [66]

$~~~~~~~\sin (x+2y) = \cos (2x-y)\\\\\\\implies \dfrac{d}{dx} \sin(x+2y) = \dfrac{d}{dx} \cos (2x-y)\\\\\\\implies \cos(x+2y)\dfrac{d}{dx}(x+2y) = -\sin(2x-y) \dfrac{d}{dx}(2x-y)~~~~~~~~~~~;[\text{Chain rule}]\\\\\\\implies \cos(x+2y) \left(1+2 \dfrac{dy}{dx}\right) = -\sin(2x-y)\left(2-\dfrac{dy}{dx} \right)\\\\\\\implies \cos(x+2y) + 2\cos(x+2y)\dfrac{dy}{dx} = -2\sin(2x-y)+\sin(2x-y) \dfrac{dy}{dx}\\ \\\\$

$\implies \sin(2x-y) \dfrac{dy}{dx} - 2\cos(x+2y) \dfrac{dy}{dx} = \cos(x+2y) + 2\sin (2x-y)\\\\\\\implies \left[\sin(2x-y) -2\cos(x+2y) \right] \dfrac{dy}{dx} = \cos(x+2y) + 2\sin (2x-y)\\\\\\\implies \dfrac{dy}{dx} = \dfrac{\cos(x+2y) + 2\sin (2x-y)}{\sin(2x-y) -2\cos(x+2y) }$

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2 years ago