2 years ago

Solve for x. A 12 B 1 C 3 D 5

Mathematics

1 answer:

Vera_Pavlovna [14]2 years ago

7 0

Answer:

Ans=B.1

Step-by-step explanation:

hope this helps

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What are the greatest common factors of 28,35 and 56.

Zinaida [17]

Answer:

Step-by-step explanation:

28 35 56

1 and 28 1 and 35 1 and 56

2 and 14 7 and 5 2 and 28

4 and 7 4 and 14

7 and 8

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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 $y=-\frac1x$ ,

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

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3 years ago

There are three numbers a, b, c, where a > b and b >c. Describe the positions of the numbers on a number line.

AfilCa [17]

In maths, the “>” sign means “greater than”, or “bigger than.” If we say A > B, that means (in English) “A is bigger than B.”
So, if A > B and B > C:
A is bigger than B, and B is bigger than C.

So the smallest would be C, since both A and B are bigger. Next is B, and biggest is A.

That is the order they would be in a number line: C - B - A

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3 years ago

I neeeddddfd helpppppppppp

erica [24]

Answer: A 4/16

Step-by-step explanation:

4/16 = 1/4

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2 years ago

Read 2 more answers

F(x)=-5x

vlada-n [284]

Answer: D. -40x^3 + 25x^2 + 45x

Step-by-step explanation:

-5x(8x^2 - 5x - 9)

-40x^3 + 25x^2 + 45x

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3 years ago