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Luden [163]
3 years ago
9

Which is the most effective way to obtain a random sample of your school population

Mathematics
1 answer:
Ierofanga [76]3 years ago
8 0
Ask every fifth person that exits the school
(systematic random)
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According to​ Charles's law, if the pressure is held​ constant, the volume of a gas varies directly with the temperature measure
Ksju [112]

Answer:

V₂ = 252 cm³

Step-by-step explanation:

Charles's law = If the pressure is held​ constant, the volume of a gas varies directly with the temperature measured on the Kelvin scale.

Mathematically, V=kT

\dfrac{V_1}{T_1}=\dfrac{V_2}{T_2}

We have, V₁ = 192 cm³, T₁ = 112 K, T₂ = 147 cm³, V₂ = ?

Using the above relation of Charles's law :

V_2=\dfrac{V_1T_2}{T_1}\\\\V_2=\dfrac{192\times 147}{112}\\\\V_2=252\ cm^3

So, the new temperature is 252 cm³.

7 0
2 years ago
a ball is thrown straight up from the top of a tower that is 280 ft high with an initial velocity of 48 ft/s . the height of the
poizon [28]
First find the time that the ball is level with the top of the building on its descent. You can do this by  solving 280 = -16^2 + 48t + 280 for t. This gives t = 3 seconds . 
Then when the ball reaches the ground the  time t is obtained by solving 0 = -16t^2 + 48t + 280  This gives t = 5.94 seconds.
Answer in interval notation is  (3, 5.94].
3 0
3 years ago
Read 2 more answers
Is the intercept:<br>0<br>2<br>or 8?​
mojhsa [17]

Answer:

the y intercept should be 0

3 0
3 years ago
Read 2 more answers
1 1/4 mi = ? ft<br> 3 3/8 t = ? Ib
Assoli18 [71]
1 1/4mi = 6600 and
3 3/8 t = 6750 lb.
6 0
3 years ago
What is 9/16 x 2/3 (show ur work) thanks
Ilya [14]

Answer:

\displaystyle{ \frac{9}{16} \times  \frac{2}{3}  }

\displaystyle{ \frac{9 \times 2}{16 \times 3} }

\displaystyle{ \frac{18}{48} }

\displaystyle{ \frac{ \cancel2 \times  \cancel3 \times 3}{2 \times  \cancel2 \times 2 \times 2 \times  \cancel3} }

\displaystyle{ \frac{3}{2 \times 2 \times 2} }

\displaystyle{ \frac{3}{8} }

6 0
2 years ago
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