2 years ago

which one of the following drugs is considered a "gateway drug"? a. codeine b. heroin c. cocaine d. tobacco

Health

1 answer:

zheka24 [161]2 years ago

8 0

Tobacco is considered a gateway drug.

You might be interested in

The ovaries are part of the endocrine system.

aalyn [17]

Answer:

True

Explanation:

I believe this is a true or false question but you didn't elaborate at all.

8 0

2 years ago

The system of the body that controls the actions emotions thoughts memories sensations and senses

Olin [163]

Im pretty sure that this is the nerves which is called the nerves system I think

4 0

2 years ago

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

2 years ago

Question #1

Mademuasel [1]

Answer:

every. single. time.

7 0

2 years ago

Read 2 more answers

Alcohol (242)

zhannawk [14.2K]

Answer:

I advice you take a healthy diet instead

7 0

2 years ago