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Paha777 [63]
3 years ago
10

4/9+r=-4/9 What is r

Mathematics
1 answer:
julsineya [31]3 years ago
6 0

Answer:

r = - 8/9

Step-by-step explanation:

\frac{4}{9} +  r =  \frac{ - 4}{9}  \\ r =  \frac{ - 4}{9}  -  \frac{4}{9}  \\ r =  \frac{ - 8}{9}

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Please calculate this limit <br>please help me​
Tasya [4]

Answer:

We want to find:

\lim_{n \to \infty} \frac{\sqrt[n]{n!} }{n}

Here we can use Stirling's approximation, which says that for large values of n, we get:

n! = \sqrt{2*\pi*n} *(\frac{n}{e} )^n

Because here we are taking the limit when n tends to infinity, we can use this approximation.

Then we get.

\lim_{n \to \infty} \frac{\sqrt[n]{n!} }{n} = \lim_{n \to \infty} \frac{\sqrt[n]{\sqrt{2*\pi*n} *(\frac{n}{e} )^n} }{n} =  \lim_{n \to \infty} \frac{n}{e*n} *\sqrt[2*n]{2*\pi*n}

Now we can just simplify this, so we get:

\lim_{n \to \infty} \frac{1}{e} *\sqrt[2*n]{2*\pi*n} \\

And we can rewrite it as:

\lim_{n \to \infty} \frac{1}{e} *(2*\pi*n)^{1/2n}

The important part here is the exponent, as n tends to infinite, the exponent tends to zero.

Thus:

\lim_{n \to \infty} \frac{1}{e} *(2*\pi*n)^{1/2n} = \frac{1}{e}*1 = \frac{1}{e}

7 0
3 years ago
Anyone can help me with this please!!!????(don’t mind the question at the bottom!!)
weqwewe [10]

Answer:

a=6     b=12

Step-by-step explanation:

i think i could be wrong

6 0
3 years ago
-3x+4=13 SOLVE PLZ! INEQUALITY
arlik [135]
Hi!

What you'll first need to do is subtract 4 from 4 and 13. After doing so, your equation will look like this...

-3x=9

Next, you'll need to divide -3x and 9 by -3. After you've done that, you'll get...

x=-3.

So your answer would be x=-3

I hope this helps!
5 0
3 years ago
Read 2 more answers
PLSSSS HELP ME!!!
Phoenix [80]

Amount of juice hold by Cup B which is in the shape of a cylinder having width 2 inches that is radius 1 inches and height 7 inches

=  cubic inches

Amount of juice hold by cup A which is in the shape of a cone having width 2 inches that is radius 1 inches and height 3 inches

 =  cubic inches

Amount of juice that cup B will hold than cup A when both are completely full    =  cubic inches

= 6 × 3.14

= 18.84 cubic inches

Option A: 18.8 cubic inches

7 0
3 years ago
Use a benchmark to find an equivalent percent for each fraction. 9/10 and 2/5. Please help! :o will mark brainliest if can!
denpristay [2]

Answer

9/10=<u>90%</u> and 2/5=<u>40%</u>

Explanation

9÷10=0.9   0.9x100=90%

2÷5=0.4   0.4x100=40%

<em>hope this helps!</em>

<em>have a wonderful day :)</em>

3 0
3 years ago
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