2 years ago

Simplify 4r-4r-10s+2s

Mathematics

1 answer:

sertanlavr [38]2 years ago

5 0

The answer is: −8s

Hope this helps :)

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Which of the numbers below are whole numbers?Check all that apply. A. 9747.25 B. 0.7832 C. 918 D. 0 E. 46245.7 F. 484.857

Aleonysh [2.5K]

I'm pretty sure it's C and D

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3 years ago

Read 2 more answers

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

Could a triangle be constructed with side lengths 4 cm, 5 cm and 13 cm? *

Ratling [72]

Answer:

NO.

Step-by-step explanation:

No because 13 > 4 + 5.

7 0

2 years ago

What is the answer to this question?

timurjin [86]

Answer: Option 1

Step-by-step explanation:

See attached image

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1 year ago

Is 16:14 in 64:60 eqiluvant

Elanso [62]

16: 14 - divide by 2

16/2= 8 , 14/2=7

64:60- divide by 4

64/4= 16 , 60/4= 15

Answer: 16:14 and 64:60 are not equivalent.

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2 years ago