3 years ago

Is 3.4 x 10 ⁵ a irrational number or rational number?

Mathematics

1 answer:

Luba_88 [7]3 years ago

6 0

Answer:

It's a rational number

Step-by-step explanation:

Hope this help have a good day and good luck plz vote best answer :)

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Write a proportion that could be used to solve for each variable. Then solve.

iren [92.7K]

60/25 = 12/Y
cross multiply and divide

25 x 12 = 300

300 / 60 = 5

Y = 5 boxes

4 0

3 years ago

If a/b = c/d, then ad = bc.

Nikolay [14]

Answer:

The statement is true

see the explanation

Step-by-step explanation:

we have the proportion

$\frac{a}{b}=\frac{c}{d}$

we know that

To solve the proportion multiply in cross

$(a)(d)=(b)(c)$

$ad=bc$

therefore

The statement is true

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4 years ago

I need help with this math, it is hard and I’m not good at it. I don’t understand this math so plz help me.

klasskru [66]

142 hope I’m right this time

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3 years ago

Read 2 more answers

How do find the domain and range of <img src="https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B%5Csqrt%7Bx-8%7D%7D" id="TexFormula1" tit

Kisachek [45]

$\sqrt{x-8}$ is undefined if the argument $x-8$ is negative, so you first need to require that

$x-8\ge0\implies x\ge8$

We're not done yet, though, because $\dfrac1{\sqrt{x-8}}$ still doesn't exist when $x=8$ , so we remove this from the domain and we're left with $x>8$ , or in interval notation, $(8,\infty)$

To find the range, consider the limits of the function as you approach either endpoint of the domain.

$\displaystyle\lim_{x\to8^+}\frac1{\sqrt{x-8}}=+\infty$
$\displaystyle\lim_{x\to\infty}\frac1{\sqrt{x-8}}=0$

Since $\dfrac1{\sqrt{x-8}}$ is positive everywhere, the range is $(0,\infty)$

3 0

3 years ago

Mrs Smith has 12 times as many markers as color pencils the total number of markers and colored pencils is 78 how many markers d

Ainat [17]

Let the colored pencil amount be p.
Then this is the equation:
12p+p=78
Simplifying, we can see that
13p=78
Divide both sides by 13 to get
p=6

Since there are 12 times as many markers as colored pencils, there are 72 markers.

6 0

3 years ago