2 years ago

What is the square root of 72/25x4

Mathematics

2 answers:

likoan [24]2 years ago

7 0

Ding it for the change

Afina-wow [57]2 years ago

6 0

Answer:

1.35764501988

Step-by-step explanation:

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Community Gym charges a $50 membership fee and a $70 monthly fee. Workout Gym charges a $200

Reil [10]

Answer:

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=$890

workout gym

200+(60×12)

=$920

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3 years ago

Alex wrote the equation C= 2n describe a situation that this equation could represent

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3 years ago

A biology class examined some flowers in a local meadow. Out of the 40 flowers they saw, 8 were perennials. What percentage of t

Sladkaya [172]

So first we want to say, 8 out of the 40 flowers were perennials.

8 out of 40 is 8/40, or simplified down to 1/5.

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3 years ago

Find the volume of a cylinder that has a radius of 11 m and a height of 9 m.

hjlf

Answer:

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2 years ago

Implicit differentiation of 1/x +1/y=5 y(4)= 4/19<br> y'(4)=?

Aneli [31]

$\frac{1}{x} +\frac{1}{y} = 5\\\\x^{-1}+y^{-1}=5\\$

Above, I changed the fraction form of x and y into exponential form so it is easier to see the differentiation. Now, we can differentiate:

$-1x^{-2}+-1y^{-2}\frac{dy}{dx}=5\\\\\frac{-1}{x^2}-\frac{1}{y^2}\frac{dy}{dx}=5\\\\-\frac{1}{y^2}\frac{dy}{dx}=5+\frac{1}{x^2}\\\\\frac{dy}{dx}=-5y^2-\frac{y^2}{x^2}$

Now that we have dy/dx, we can plug in the x, which is 4, and the y, which is 4/19. We know these values of x and y because your question stated y(4) = 4/19.

$\frac{dy}{dx}=-5(\frac{4}{19})^2-\frac{(\frac{4}{19})^2}{(4)^2}\\\\\frac{dy}{dx}=-5(\frac{16}{361})-\frac{(\frac{16}{361})}{16}\\\\\frac{dy}{dx}=\frac{-80}{361}-\frac{1}{361}\\\\\frac{dy}{dx}=\frac{-81}{361}$

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3 years ago