Help!!!!!!!

Mathematics

2 answers:

romanna [79]3 years ago

8 0

Answer:

hope this helps ! <33

Step-by-step explanation:

Gas exchange takes place in the millions of alveoli in the lungs and the capillaries that envelop them. Inhaled oxygen moves from the alveoli to the blood in the capillaries, and carbon dioxide moves from the blood in the capillaries to the air in the alveoli.

miskamm [114]3 years ago

7 0

Answer:

Gas exchange takes place in the millions of alveolar in the lungs and the capillaries that envelop them. As shown below, inhaled oxygen moves from the alveolar to the blood in the capillaries, and carbon dioxide moves from the blood in the capillaries to the air in the alveolar.

Step-by-step explanation:

You might be interested in

A sample of 100 footballs showed an average air pressure of 13 psi. The standard deviation of the population is known to be .25

Vladimir79 [104]

Answer:

0.025 is the standard error of mean.

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 100

Sample mean = 13 psi

Population standard deviation = 0.25 psi

We have to find the standard error of the mean.

Formula:

Standard error =

$\dfrac{\sigma}{\sqrt{n}} = \dfrac{0.25}{\sqrt{100}} = \dfrac{0.25}{10} = 0.025$

0.025 is the standard error of mean.

7 0

3 years ago

If cheese is $4.40 per kilogram, what should i pay for 200 grams

Contact [7]

1 kg is 1,000 grams.

200 grams are 1/5 of 1000 grams, that is 1/5 of 1 kg.

Thus 200 g= 1/5 kg = 0.2 kg.

1 kg of cheese is <span>$4.40,
</span>
so 0.2 kg of cheese is $\displaystyle{ \frac{0.2kg \cdot \$4.40}{1kg}}=4.40 \cdot0.2 \$= 0.88\$$

Answer: $0.88

8 0

2 years ago

Read 2 more answers

Show the steps to solve the system of equation. x-2y+3z=-4 , 3x+y-z=0 , 2x+3y-5z=1

Taya2010 [7]

Answer:

x= -1, y = 6, z = 3

Step-by-step explanation:

let me solve it with Gaussian Elimination