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3 years ago

What algebraic expression could represent the average of 2x, x + 3, and 6x?

Mathematics

2 answers:

Gre4nikov [31]3 years ago

8 0

Answer:

(5x = 2 = 3 +8a

Step-by-step explanation:

charle [14.2K]3 years ago

4 0

Answer:

3x+1

Step-by-step explanation:

(2x+x+3+6x)/3

9x+3/3

3x+1

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Someone check my answers please

Anna007 [38]

Answer:

its right

Step-by-step explanation:

4 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

A survey of 9,000 randomly selected dentists practicing in the untied states found that 3,600 of them used text messaging to rem

photoshop1234 [79]

58,800.

3600 divided by 9000 is 0.4

147,000 * 0.4 is 58,800

6 0

3 years ago

Justify each step. <br> 3•(10•12)=3•(12•10)<br> =(3•12)•10<br> =36•10<br> =360

ziro4ka [17]

Answer:

3•(10•12)=3•(12•10) = 360 = True

Step-by-step explanation:

left-hand side Simplify the following:

3×10×12

10×12 = 120:

3×120

3×120 = 360:

Answer: 360

______________________

Right-hand side:

Simplify the following:

3×12×10

Hint: | Multiply 12 and 10 together.

12×10 = 120:

3×120

Hint: | Multiply 3 and 120 together.

3×120 = 360:

Answer: 360

5 0

3 years ago

2(x+3)=2x+6 name the property

maria [59]

Distributive property. You distribute the 2 to the X and get 2x, then distribute the 2 and the 3. 2X3=6. This gets you 2x+6.

8 0

3 years ago

Read 2 more answers