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boyakko [2]
3 years ago
10

Will be mark brainless please answer correctly

Mathematics
1 answer:
slamgirl [31]3 years ago
4 0
I believe the answer is B. -3.
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Oxygen flows through one tube into a liter flask filled with air, and the mixture of oxygen and air (considered well stirred) es
yKpoI14uk [10]

The amount of oxygen in the flask through the intake tube illustrates proportions

The flask 99.35% will contain of oxygen after 5L have passed through the intake tube

<h3>How to calculate the percentage of oxygen?</h3>

To do this, we make use of the following representations

  • P for the proportion of oxygen
  • V for te volume of oxygen
  • x for the proportion of oxygen in the flask after 5 L passed through

So. we have the following derivative

dP = dV - P * dV

Divide through by dV

dP/dV  = 1 - P

Next, we set up the integral

\int\limits^x_{0.040}  \frac {1}{1 - P}dP= \int\limits^5_0 {dV}

Integrate both sides

-\ln(|P - 1|)|\limits^x_{0.04} = 5

Expand

-ln(|x - 1|) + ln(|0.04 - 1|) = 5

Evaluate the difference

-ln(|x - 1|) + ln(|-0.96|) = 5

Express as a fraction

ln(0.96/|x - 1|) = 5

Express both sides as exponents with a base of 2

e^ln(0.96/|x - 1|) = e^5

Solve for x

x = 1 - 0.96/e^5

Evaluate the difference

x = 0.9935

Express as percentage

x = 99.35%

Hence, the flask 99.35% will contain of oxygen after 5L have passed through the intake tube

Read more about proportions at:

brainly.com/question/1781657

3 0
2 years ago
Please help me!!!!!!!!!​
NeX [460]

Answer:

10 * 5 / 2 = 25 cm

Step-by-step explanation:

Hope this helps

5 0
3 years ago
Read 2 more answers
Solve pls correctly brainliest if correct!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
nikitadnepr [17]

Answer:

y=6

Step-by-step explanation:

The equation of the line with slope 2 is y=2x+b, b is a constant which should be determined. The line passes via through points (1, 2) and (3,y)

(1, 2): 2=2+b --> b=0

So, the equation of the line is y=2x. Now, when x=3, y=6. So the line y=2x passes through points (1, 2) and (3, 6). (3,y)=(3, 6).

5 0
3 years ago
Please solve it help me ..............<br>​
Sedbober [7]

Answer:

(a) = iv

b = i

c= ii

d = iii

Q-3

- radical 3

Step-by-step explanation:

8 0
2 years ago
Work out the volume of a cuboid 2cm by 4cm by 5cm
andrew-mc [135]
For a cuboid's volume you simply go length x width x heigth so 2x4x5 so it's 40.
3 0
3 years ago
Read 2 more answers
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