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densk [106]
3 years ago
9

I think of a number multiply it by 2, subtract 5 and multiply the result by 2

Mathematics
1 answer:
zalisa [80]3 years ago
7 0
Call our original number n. Then here's what we did in an equation:
(n*2-5)*2=2

We can solve this for n:
n*2-5=1
n*2=6
n=3
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HELP ME, SOMEONE!!!
olya-2409 [2.1K]

Answer:

10KL/1000L

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Step-by-step explanation:

7 0
2 years ago
What are all values of x for which the series shown converges? ​
adoni [48]

Answer:

One convergence criteria that is useful here is that, if aₙ is the n-th term of this sequence, then we must have:

Iaₙ₊₁I < IaₙI

This means that the absolute value of the terms must decrease as n increases.

Then we must have:

\frac{(x -2)^n}{n*3^n} > \frac{(x -2 )^{n+1}}{(n + 1)*3^{n+1}}

We can write this as:

\frac{(x -2)^n}{n*3^n} > \frac{(x -2 )^{n+1}}{(n + 1)*3^{n+1}} = \frac{(x -2)^n}{(n + 1)*3^n} * \frac{(x - 2)}{3}

If we assume that n is a really big number, then:

n + 1 ≈ 1

And we can write:

\frac{(x -2)^n}{n*3^n} > \frac{(x -2)^n}{(n)*3^n} * \frac{(x - 2)}{3}

Then we have the inequality

1 > (x - 2)/3

And remember that this must be in absolute value, then we will have that:

-1 < (x - 2)/3 < 1

-3 < x - 2 < 3

-3 + 2 < x < 3 + 2

-1 < x < 5

The first option looks like this, but it uses the symbols ≤≥, so it is not the same as this, then the correct option will be the second.

5 0
2 years ago
How you substract 7 from 52
ioda
52-7 which equals 45
6 0
3 years ago
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Could I get some help? QUESTION: This table shows the profit for a company (in millions of dollars) in different years.
Pani-rosa [81]

Answer:

17 million

Step-by-step explanation:

-0.34(8^{2}) + 4.43(8) + 3.46

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13.68 + 3.46

17.14

Answer: C 17 million

Have an amazing day!

<u><em>PLEASE RATE!</em></u>

7 0
2 years ago
How to write the number 1.39-1.14 in word form
9966 [12]
0.25 which is a quarter. 
3 0
3 years ago
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