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faltersainse [42]

2 years ago

8

Simplify completely the quantity x squared plus x minus 12 over quantity x squared minus x minus 20 divided by the quantity 3 x

squared minus 24 x

1 answer:

amm18122 years ago

4 0

Answer:

Answer: 4(x+1) over (x-5)

Step-by-step explanation:

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What is the final amount if 588 is decreased by 3% followed by a 6% increase?

Kaylis [27]

Answer:

604.58

Step-by-step explanation:

because hegarty says its 604.58

8 0

3 years ago

Which expression is equivalent to 4x2 + 9x – (x – 3)2 + 11?

Zanzabum

4x^2+9x-(x^2-6x+9)+11
4x^2+9x-x^2+6x-9+11
3x^2+15x+2

4 0

2 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

2 years ago

Solve 4x + 5 = x + 26

prohojiy [21]

Answer:

Step-by-step explanation: 7

Subtract 5 on both sides to get 4x = x + 21

then, subtract x from 4x and x is 1, so 3x = 21 then divide by 3 on both sides

8 0

2 years ago

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Find the product. (n + 7)2

masha68 [24]

(n+7)2
= (n)(2) + (7)(2)
=2n+14

5 0

3 years ago

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