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3 years ago

ILL MARK AS BRAINLESS PLS HELP HURRY

Mathematics

2 answers:

Bond [772]3 years ago

5 0

Answer: 4/10 is part-to-part. 28/8 is whole to part. 10/6 is part to part. 6/28 is part to whole.

Step-by-step explanation:

Keith_Richards [23]3 years ago

3 0

Answer:

I think this is the answer

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What is the next step. pls help!!

hram777 [196]

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3 years ago

Which of the following is not a condition for constructing confidence intervals?

Andrew [12]

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3 years ago

Find the general solution of the following equation. Express the solution explicitly as a function of the independent variable.

Mashcka [7]

Answer:

Therefore the general solution is

$2 \sqrt w = 2 ln(x) - 5 \frac1x +c$

Step-by-step explanation:

Integration Rule:

$\int x^n dx= \frac{x^{n+1}}{n+1}+c$
$\int \frac1x dx= ln(x) +c$

Given differential equation is

$x^2 \frac{dw}{dx}= \sqrt{w}(2x+5)$

$\Rightarrow x^2 dw= \sqrt{w} (2x+5) dx$ [ multiplying dx both sides]

$\Rightarrow \frac{dw}{\sqrt w}= \frac{(2x+5)}{x^2} dx$ [ dividing $x^2\sqrt w$ both sides]

Integrating both sides

$\int \frac{dw}{\sqrt w}=\int \frac{(2x+5)}{x^2} dx$

$\Rightarrow \int w^{-\frac12} dw=\int (\frac{2x}{x^2}+\frac{5}{x^2} )dx$

$\Rightarrow \int w^{-\frac12} dw=\int \frac{2}{x}dx +\int\frac{5}{x^2} dx$

$\Rightarrow \frac{w^{-\frac12+1}}{-\frac12+1} =2ln x+5 \frac{x^{-2+1}}{-2+1}+c$ [ c is arbitrary constant]

$\Rightarrow 2 \sqrt w = 2 ln(x) - 5 \frac1x +c$

Therefore the general solution is

$2 \sqrt w = 2 ln(x) - 5 \frac1x +c$

6 0

3 years ago

Please help on this one <3

Katena32 [7]

I think it helps to put it into an algebraic equation first:

14 + <em>n</em> = 25

Now we need to find the graph that matches it. The answer is D, since it represents our equation.

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3 years ago

Ella can read 2 pages in 3<br> minutes. How long will it take her<br> to read 45 pages ?

hammer [34]

Answer:

15 minutes

Step-by-step explanation:

2 pages = 3 minutes

45 pages = 3x minutes

45 / 3 = 15

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3 years ago