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aleksklad [387]
3 years ago
9

If sin=3/5 then what does tan equal

Mathematics
2 answers:
daser333 [38]3 years ago
8 0

Answer:

Not sure if this is correct but maybe it is 34?

JulijaS [17]3 years ago
6 0

Answer: tan(x)=\±\frac{3}{4}

Step-by-step explanation:

You know that sin(x)=\frac{3}{5} and you can identify that. Then:

sin^2(x)=(\frac{3}{5})^2

sin^2(x)=\frac{9}{25}

Remember that:

cos^2(x)=1-sin^2(x)

Then cos^2(x) is:

cos^2(x)=1-\frac{9}{25}\\\\cos^2(x)=\frac{16}{25}

Apply square root to both sides to find cos(x):

\sqrt{cos^2(x)}=\±\sqrt{\frac{16}{25}}\\cos(x)=\±\frac{4}{5}

Remember that:

tan(x)=\frac{sin(x)}{cos(x)}

Then, this is:

tan(x)=\frac{\frac{3}{5}}{\±\frac{4}{5}}

tan(x)=\±\frac{3}{4}

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while swimming in the pool, you attempt to swim the whole length of the pool without getting a breath. you are able to do it 3 o
Luba_88 [7]

Answer:

30 out of 50 times.

Step-by-step explanation:

1 attempt represents 3 out of 5 times.

10 attempts equals 1 attempt x 10.

Multiply numbers 3 and 5 by 10.

3 x 10 = 30

5 x 10 = 50.

Therefore, your solution is 30 / 50 times.

6 0
3 years ago
The net of a solid figure is shown below:
madam [21]

Answer:

28

Step-by-step explanation:

6 0
3 years ago
Factor 81z^4 - 16<br> Please answer asap
Oksanka [162]

81x%5E4-16 Start with the given expression.

%289x%5E2%29%5E2-16 Rewrite 81x%5E4 as %289x%5E2%29%5E2.

%289x%5E2%29%5E2-%284%29%5E2 Rewrite 16 as %284%29%5E2.

Notice how we have a difference of squares A%5E2-B%5E2 where in this case A=9x%5E2 and B=4.

So let's use the difference of squares formula A%5E2-B%5E2=%28A%2BB%29%28A-B%29 to factor the expression:

A%5E2-B%5E2=%28A%2BB%29%28A-B%29 Start with the difference of squares formula.

%289x%5E2%29%5E2-%284%29%5E2=%289x%5E2%2B4%29%289x%5E2-4%29 Plug in A=9x%5E2 and B=4.

So this shows us that 81x%5E4-16 factors to %289x%5E2%2B4%29%289x%5E2-4%29.

In other words 81x%5E4-16=%289x%5E2%2B4%29%289x%5E2-4%29.

Now let's factor 9x%5E2-4 further

-------------------------------------

 

9x%5E2-4 Start with the given expression.

%283x%29%5E2-4 Rewrite 9x%5E2 as %283x%29%5E2.

%283x%29%5E2-%282%29%5E2 Rewrite 4 as %282%29%5E2.

Notice how we have a difference of squares A%5E2-B%5E2 where in this case A=3x and B=2.

So let's use the difference of squares formula A%5E2-B%5E2=%28A%2BB%29%28A-B%29 to factor the expression:

A%5E2-B%5E2=%28A%2BB%29%28A-B%29 Start with the difference of squares formula.

%283x%29%5E2-%282%29%5E2=%283x%2B2%29%283x-2%29 Plug in A=3x and B=2.

So this shows us that 9x%5E2-4 factors to %283x%2B2%29%283x-2%29.

In other words 9x%5E2-4=%283x%2B2%29%283x-2%29.

----------------------------------------------------------------

Answer:

So 81x%5E4-16 completely factors to %289x%5E2%2B4%29%283x%2B2%29%283x-2%29

3 0
3 years ago
a patient is to take 4 1/4 tablespoons of medicine per day in 5 equally divided doses. how much medicine is to be taken in each
Inga [223]
Okay. So we have to do division, because you're dividing 4 1/4 (17/4) tablespoons of medicine by 5 doses. The formula for multiplying fractions is keep, change, flip. 17/4 * 1/5 is 17/20. 17/20 tablespoon of medicine is supposed to be taken in each dose.
7 0
3 years ago
Solving the following system using the elimination of substitution method.<br> 5a+3b=11<br> -2a+3=b
PSYCHO15rus [73]

Answer:

a = -2

b = 7

Step-by-step explanation:

5a+3b=11

-2a+3=b

substitute for b:

5a + 3(-2a + 3) = 11

5a -6a + 9 = 11

-a = 2

a = -2

b = 7

4 0
3 years ago
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