Answer:
16
Explanation:
Simplify the following:
3^2 (-4) + 21/7 + (14/2)^2
Hint: | Reduce 21/7 to lowest terms. Start by finding the GCD of 21 and 7.
The gcd of 21 and 7 is 7, so 21/7 = (7×3)/(7×1) = 7/7×3 = 3:
3^2 (-4) + 3 + (14/2)^2
Hint: | Reduce 14/2 to lowest terms. Start by finding the GCD of 14 and 2.
The gcd of 14 and 2 is 2, so 14/2 = (2×7)/(2×1) = 2/2×7 = 7:
3^2 (-4) + 3 + 7^2
Hint: | Evaluate 3^2.
3^2 = 9:
9 (-4) + 3 + 7^2
Hint: | Multiply 9 and -4 together.
9 (-4) = -36:
-36 + 3 + 7^2
Hint: | Evaluate 7^2.
7^2 = 49:
-36 + 3 + 49
Hint: | Evaluate 3 + 49 using long addition.
| 1 |
| 4 | 9
+ | | 3
| 5 | 2:
52 - 36
Hint: | Subtract 36 from 52.
| 4 | 12
| 5 | 2
- | 3 | 6
| 1 | 6:
Answer: 16
B. both oxygen and carbon dioxide diffuse from the blood into the alveoli.
C. oxygen diffuses into the blood and carbon dioxide diffuses into the alveoli.
D. carbon dioxide diffuses into the blood and oxygen diffuses into the alveoli.
At the lungs, oxygen diffuses into the blood and carbon dioxide diffuses into the alveoli.
• At the time of exchange of gases, oxygen moves from the lungs to the bloodstream.
• At similar time, carbon dioxide passes into the lungs from the blood.
• This takes place in the lungs between the network of tiny blood vessels known as capillaries and the alveoli.
• The molecules of the oxygen gas combines with the red blood cells that mediates back to the heart.
• The diffusion of carbon dioxide takes place out of the bloodstream, via the capillaries, and into the alveoli from where it is exhaled out.
• At the same time, oxygen combines simultaneously with hemoglobin and is carried back to the tissues.
Thus, the correct answer is option C.
To know more about:
Answer:
C.
Explanation:
It can not be A. because if both oxygen and carbon dioxide diffused from the alveoli into the blood there would be too little oxygen and too much carbon dioxide.
If both oxygen and carbon dioxide diffused into the alveoli like in B. then that is even worse than the first one because that would leave our blood without oxygen that our body needs for functioning.
And D. can't be true because we don't run on CO2 but on O2 and getting rid of O2 for CO2 would kill us.
Answer:
The correct answer is - The end-piece should be held between the second and third fingers.
Explanation:
Auscultation is the term for hearing or listening to the sound internal parts of the body, typically utilizing a stethoscope. Auscultation is performed for the reasons for analyzing the circulatory system and respiratory framework (heart sounds and breath sounds), just as the gastrointestinal framework (bowel sounds).
To listen to these sounds the health care professional need to stabilize the stethoscope should hold the end piece between the second and third fingers.
Answer:
Explanation:
The correct answer is D.
Generic medications include the same active ingredients as the original medication. The only difference is that generic medicines are cheaper because they don't have the original pharmaceutical brand name on them so you are paying for the drug not the drug and the name that comes along with it. There is nothing wrong with generic medicines. The coating of the tablet might differ or the dosages but essentially it is the same medication.
Answer: include the same active ingredients as the original medication
Explanation: A generic drug must contain the same active ingredients and must be equivalent in strength and dosage to the original brand name.
Answer:
the pin will sink the wood will float