3 years ago

How to solve this 4×5-45÷9

Mathematics

2 answers:

Doss [256]3 years ago

7 0

Answer:

Step-by-step explanation:

the answer is 15

Ilia_Sergeevich [38]3 years ago

7 0

Answer: 4x5-45÷9=15

Step-by-step explanation:

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Find dydx for xy+x+y=6. Differentiate both sides of the equation with respect to x, and then solve for dydx. Do not substitute f

velikii [3]

Answer:

$\frac{dy}{dx}=-\frac{y+1}{x+1}$

Step-by-step explanation:

The given equation is $xy+x+y=6$

Differentiate both sides with respect to x

$x\frac{dy}{dx}+y+1+\frac{dy}{dx}=0$

Take y and 1 to other sides of the equation

$x\frac{dy}{dx}+\frac{dy}{dx}=-y-1$

Factor out dy/dx from the left hand side of the equation

$\frac{dy}{dx}(x+1)=-y-1$

Divide both sides by (x+1)

$\frac{dy}{dx}=\frac{-y-1}{x+1}\\\\\frac{dy}{dx}=-\frac{y+1}{x+1}$

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ArbitrLikvidat [17]

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