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3 years ago

What is Choana Atresia?

1 answer:

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Choanal atresia is a congenital disorder where the back of the nasal passage is blocked, usually by abnormal bony or soft tissue (membranous) due to failed recanalization of the nasal fossae during fetal development.

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If 2^x=3^y=12^z, show that 1÷z=1÷y+2÷x.....

Ostrovityanka [42]

Answer:

Proof of $\dfrac{1}{z}}=\dfrac{1}{y}+\dfrac{2}{x}$ is shown below.

Explanation:

The given equation is

$2^x=3^y=12^z$

To prove : $\dfrac{1}{z}=\dfrac{1}{y}+\dfrac{2}{x}$

Proof : Let as assume,

$2^x=3^y=12^z=k$

$2^x=k\Rightarrow 2=k^{\frac{1}{x}}$ ...(1)

$3^y=k\Rightarrow 3=k^{\frac{1}{y}}$ ...(2)

$12^z=k\Rightarrow 12=k^{\frac{1}{z}}$ ...(3)

We know that

$12=2\times 2\times 3$

$12=(2)^2\times 3$

Using (1), (2) and (3), we get

$k^{\frac{1}{z}}=(k^{\frac{1}{x}})^2\times k^{\frac{1}{y}}$

$k^{\frac{1}{z}}=k^{\frac{2}{x}}\times k^{\frac{1}{y}}$

$k^{\frac{1}{z}}=k^{\frac{2}{x}+\frac{1}{y}}$

On comparing both sides, we get

$\dfrac{1}{z}}=\dfrac{2}{x}+\dfrac{1}{y}$

$\dfrac{1}{z}}=\dfrac{1}{y}+\dfrac{2}{x}$

Hence proved.

8 0

4 years ago

Which part of an action plan discusses about the materials be used?

BartSMP [9]

Answer: c. Resources needed

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3 years ago

The higher the level of certain vitamins and minerals in the bloodstream, the better a person's lung function, as measured by th

noname [10]

Answer:

The correct answer is (E) Smoking does not introduce into the body chemicals that prevent the helpful vitamins and minerals from entering the bloodstream.

Explanation:

The correct answer is (E) Smoking does not introduce into the body chemicals that prevent the helpful vitamins and minerals from entering the bloodstream.

Since the premise that is necessary to take into account is that the higher level of vitamin and minerals in the bloodstream, the better a person's lung function, it would be necessary to consider that the diet can counter the amount of those levels in the bloodstream.

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3 years ago

According to the centers for disease control and prevention, how many teens report physical, verbal, emotional, or sexual abuse

Katarina [22]

The answer is c. one in four

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3 years ago

can someone help me prepare a list of measures implemented in a modern supermarket to meet current hygiene standards.

Lelechka [254]

Going to base this on experience:
- daily, nightly cleaning of the store
- the use of strategically placed antibacterial sanitizer near the meat sections as well as the vegetable section.
- timed and automatic misting of vegetables to prevent the growth of bacteria
- instant reaction and response to product spills
- throwing out any unused baked/ cooked goods
- throwing out expired products nightly
- tissues boxes placed around the meat sections
- the use of strong chemicals daily to sanitize the entire store.
- workers who handle food are required to wear gloves
- if someone say cuts you a slice of meat, they have to dispose of the gloves and get a new pair to prevent cross contamination of salmonella

5 0

3 years ago