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Illusion [34]
3 years ago
10

3. Two identical balloons are filled, one with helium and one with nitrogen at the same temperature. If the nitrogen balloon lea

ks at the rate of 75 mL per hour, what will be the rate of leakage from the helium balloon
Mathematics
1 answer:
postnew [5]3 years ago
6 0

Answer:

140.32mL per hour

Step-by-step explanation:

Rate of leakage of nitrogen ballon = 75 mL/h

Rate of leakage of helium ballon = x

Molar mass of nitrogen= Mn = 14

Molar mass of helium = Mh = 4

Effusion formula

Rate of effusion of helium/ Rate of effusion of nitrogen= √(Molar mass of nitrogen/Molar mass of helium)

Rate of effusion of helium = 75mL/h * √(14/4)

= 140.32mL/h

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Please answer no trolls
satela [25.4K]

Answer:

\Huge\boxed{D.14.6}

Step-by-step explanation:

Hello There!

We can solve for x using trigonometry

More specifically the law of sines

In the image you can see that a side length divided by sin(its opposite angle) is equal to another side length divided by sin(its opposite angle)

so to find x we use this equation

\frac{x}{sin59} =\frac{17}{sin90}

step 1 multiply each side by sin 59

now we have

x=\frac{17sin59}{sin90}\\x = 14.6

so we can conclude that x = 14.6

7 0
2 years ago
Find the area of triangle ABC with the given side lengths and included angle. 1. B= 124 degrees, a=9, c=11
marishachu [46]

Answer:

41

Step-by-step explanation:

We can obtain the area of a triangle where two sides and an included angle is given by saying; 1/2 ab sinθ

where a and b are the given sides of the triangle and θ is the included angle.

From the formula for the area of the triangle;

Area of a triangle = 1/2 ac sin B

Area of the triangle = 1/2 * 9 * 11 * sin 124

Area of the triangle = 49.5 * sin 124

Area of the triangle =  41

8 0
3 years ago
I need some help with this<br><br>​
dalvyx [7]

\pink{\underline{{\boxed{\bf{QUESTION: }}}}}

-6(x+4) = _____

\pink{\underline{{\boxed{\bf{OPTIONS:}}}}}

  • 6x - 4❌
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  • -6x - 24✔️
  • 6x + 24❌

\pink{\underline{{\boxed{\bf{ ANSWER: }}}}}

-6(x+4) = <u>-6x - 24</u>

<h3>Hope It's helped! :)</h3>
4 0
2 years ago
What word problem could be used for the 2 step equation .5(x+40)=200
Fiesta28 [93]

Since multiplying by 0.5 is the same as dividing by 2, the problem is described by the sentence

"Half the sum of a number and 40 equals 200"

5 0
2 years ago
Read 2 more answers
the total cost c a painter charges to paint a house depends on the number h of hours its takes to paint the house. this situatio
Ilya [14]

given that

c = 15h + 245

when h = 30.35  , cost c = (15 × 30.35) + 245

= 453.75 + 245 = 698.75

so cost if painter works = 698.75 unit of currency.

4 0
3 years ago
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