3 years ago

-2(5n + 7) + 8n = 2(1 – 3n)

Mathematics

1 answer:

Delicious77 [7]3 years ago

6 0

N=4
N must be equaled to 4.

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(8.03 LC)

Blizzard [7]

y = 4x + 8

y = 4x + 2

y = y

4x + 8 = 4x + 2

8 = 2

6 0

3 years ago

Determine whether the integral is convergent or divergent. ∫[infinity] 2 e^−1/x / x^2 dx : O Convergent O divergent If it is con

monitta

Let $f(x)=e^{-1/x}$ . Then $f'(x)=\frac1{x^2}e^{-1/x}>0$ for all $x\ge2$ , so $f$ is strictly increasing. As $x\to\infty$ , $e^{-1/x}\to e^0=1$ , so $f$ is bounded above by 1. This is to say,

$e^{-1/x}$

and the integral of $\frac1{x^2}$ converges over the same domain, so this integral must also converge by comparison.

We have, by setting $y=-\frac1x$ ,

$\displaystyle\int_2^\infty\frac{e^{-1/x}}{x^2}\,\mathrm dx=\int_{-1/2}^0e^y\,\mathrm dy=e^0-e^{-1/2}=1-\frac1{\sqrt e}$

8 0

3 years ago

What is (a+2)(a+2) make sure to multiply

a_sh-v [17]

Answer:

a² + 4 a + 4

Step-by-step explanation:

( a + 2 ) ( a + 2 )

Expand brackets

a² + 2 a + 2 a + 4

Simplify

a² + 4 a + 4

7 0

3 years ago

Read 2 more answers

Please check my answer!

umka21 [38]

A ) P=6n+18 where N is the number of triangles. There's always two '9's and the 6 is based on how many triangles there are.

3 0

3 years ago

The point-Slope form of a line that has a slope of , and passes through the point (3, 0) is shown.

stellarik [79]

Answer:

y=1/4x-3/4

Step-by-step explanation:

You just multiply 4/3 by -3

8 0

3 years ago