3 years ago

What two fractions equal -3/5

Mathematics

1 answer:

Kaylis [27]3 years ago

7 0

Answer:

-6/10 and -12/10 (I think)

Step-by-step explanation:

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What is the sum of a 7-term geometric series if the first term is −11, the last term is −171,875, and the common ratio is −5?

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Supplement is 180- angle
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If f (n)(0) = (n + 1)! for n = 0, 1, 2, , find the taylor series at a=0 for f.

Pie

Given that $f^{(n)}(0)=(n+1)!$ , we have for $f(x)$ the Taylor series expansion about 0 as

$f(x)=\displaystyle\sum_{n=0}^\infty\frac{(n+1)!}{n!}x^n=\sum_{n=0}^\infty(n+1)x^n$

Replace $n+1$ with $n$ , so that the series is equivalent to

$f(x)=\displaystyle\sum_{n=1}^\infty nx^{n-1}$

and notice that

$\displaystyle\frac{\mathrm d}{\mathrm dx}\sum_{n=0}^\infty x^n=\sum_{n=1}^\infty nx^{n-1}$

Recall that for $|x|$ , we have

$\displaystyle\sum_{n=0}^\infty x^n=\frac1{1-x}$

which means

$f(x)=\displaystyle\sum_{n=1}^\infty nx^{n-1}=\frac{\mathrm d}{\mathrm dx}\frac1{1-x}$
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3 years ago

Problem

sattari [20]

Answer:

4.67 hours

Step-by-step explanation:

The computation is shown below:

Given that

There is 14 hours remaining for devoting in a project

Also it must be completed in 3 days

So the number of hours she need to devote each day is

= 14 hours ÷ 3 days

= 4.67 hours

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Express as a trinomial (2x-9)(3x-5)

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