It’s A
there is no indicator that they are the same
Answer:
15ft
Step-by-step explanation:
If you redraw it and use a ruler it will be 15 feet.
Answer:
72.22 ft
Step-by-step explanation:
The circumference is calculated by pi x d
The number of mole of air present is 0.056 mole
<h3>Data obtained from the question </h3>
- Volume = 1.35 L
- Pressure (P) = 750 torr
- Temperature (T) = 17 °C = 17 + 273 = 290 K
- Gas constant (R) = 62.396 L•torr/mol•K
<h3>How to determine the number of mole </h3>
The number of mole present can be obtained by using the ideal gas equation as illustrated below:
PV = nRT
Divide both side by RT
n = PV / RT
n = (750 × 1.35) / (62.396 × 290)
n = 0.056 mole
Learn more about ideal gas equation:
brainly.com/question/4147359
Substitution, which can also be taken as the equal values method. You just put in the first equation for y, as it’s the same thing.
2x+2=7x+11
-2 from both sides
2x=7x+10
-7x from both sides
-5x=10
divide both sides by -5
x=-2
Then you substitute -2 for x into one of the equations.
y=7(-2)+11
y=-14+11
y=-3
Your solution is (-2,-3).
