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3 years ago

I need help? On this problem

Mathematics

2 answers:

Kamila [148]3 years ago

7 0

Answer:

8 ft

Step-by-step explanation:

Brilliant_brown [7]3 years ago

3 0

Answer:

It is 8ft.

Step-by-step explanation:

To solve this, you just need to set up a ratio.

$\frac{3in}{4ft} = \frac{6in}{x}$

---------------------------

You can now cross multiply.

6 * 4 =24

24/3 = 8

----------------------------

That concludes that the actual ping pong table is 8ft!

Good Luck!!

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What percentage of the students still receive an allowance

Mariana [72]

Answer:

I most likely think it is approximately 19%

Step-by-step explanation:

Assuming you mean still receive an allowance even though they dont do chores:

Ok In all the total number of students is 21. Out of those 21, 4 still receive an allowance even though they dont do chores. This is 4/21. Now all we have to do is convert 4/21 into a percentage. To do this we have to divide 100 by 21, then times 4 by that number:

100 / 21 = >> approximately 4.76

Now 4 times 4.76 :

4 * 4.76 = >>> approximately 19.04 % . We round it to 19%.

So the answer is 19%.

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3 years ago

For how many integers $n$ is it true that $\sqrt{n} \le \sqrt{4n - 6} < \sqrt{2n + 5}$?

ale4655 [162]

$\bf \sqrt{n}\leqslant \sqrt{4n-6}$

$\bf \sqrt{n}< \sqrt{2n+5}\implies \stackrel{\textit{squaring both sides}}{n< 2n+5}\implies 0\leqslant 2n - n + 5 \\\\\\ 0 < n+5\implies \boxed{-5 < n} \\\\\\ \stackrel{-5\leqslant n < 2}{\boxed{-5}\rule[0.35em]{10em}{0.25pt}0\rule[0.35em]{3em}{0.25pt}2}$

namely, -5, -4, -3, -2, -1, 0, 1. Excluding "2" because n < 2.

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3 years ago

Which statement best describes the function below?

harina [27]

Answer:

D. It is a many-to-one function

Step-by-step explanation:

One-t<em>o-one if every y value has exactly one x value mapped onto it</em>
<em>Many-to-one if there are y values that have more than one x value mapped onto them.</em>

We have a function that is of degree 3, so it has 3 x-intercepts which means there are points (x₁, 0), (x₂, 0), (x₃, 0), so it is a many-to-one function

Correct option is D

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3 years ago

The root mean square velocity of one mole of a monoatomic gas having molar mass M is U rms . The relation between average kineti

garik1379 [7]

root means square velocity of one mole of a monoatomic gas having molar mas*s m(M) is Urms. The relation between average kinetic energy (e)of the gas and Urms is Urms=M2E

StarrySoul please check it...

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3 years ago

PLEASE HELP DUE NOW!!

Anarel [89]

Answer:

✓ C. f(x)= sqrt 1/x

Step-by-step explanation:

i hoep this answer your question

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3 years ago