Ask question

Ask question

All categories

4 years ago

13

HEY! GOT A BUTT LOAD OF HW DUE TOMORROW PLS HELP BRAINLIEST ANSWER INCLUDED! Solve. How much pure acid is in 520 milliliters of

a 12% solution?

1 answer:

Rama09 [41]4 years ago

3 0

540ml with 12% solution

get 12% of 540

540 times 0.12 = 64.8 ml of pure acid

You might be interested in

Find out the answers to this

meriva

Answer:

$\tan \theta = - \frac{1}{5} = - 0.2$

$\cos \theta = 0.98$

$\sin \theta = - 0.196$

Step-by-step explanation:

It is given that $\cot \theta = - 5$ and $\theta$ is in the fourth quadrant.

So, only $\cos \theta$ will have positive value and $\sin \theta$ , $\tan \theta$ will have negative value.

Now, $\cot \theta = - 5$

⇒ $\tan \theta = \frac{1}{\cot \theta} = -\frac{1}{5}$ (Answer)

We know, that $\sec^{2} \theta - \tan^{2} \theta = 1$

⇒ $\sec \theta = \sqrt{1 + \tan^{2} \theta } = \sqrt{1 + (- \frac{1}{5} )^{2} } = 1.019$

{Since, $\cos \theta$ is positive then $\sec \theta$ will also be positive}

⇒ $\cos \theta = \frac{1}{\sec \theta} = \frac{1}{1.0198} = 0.98$ (Answer)

We know, that $\csc^{2} \theta - \cot^{2} \theta = 1$

⇒ $\csc \theta = - \sqrt{1 + \cot^{2} \theta } = - \sqrt{1 + (- 5 )^{2} } = - 5.099$

{Since, $\sin \theta$ is negative then $\csc \theta$ will also be negative}

⇒ $\sin \theta = \frac{1}{\csc \theta} = \frac{1}{- 5.099} = - 0.196$ (Answer)

4 0

3 years ago

Why is 1 the highest value of sine and cosine functions?

Levart [38]

The length of the sides of any right triangle are always less than the length of the hypotenuse. The sine and cosine functions find the ratio between a side and the hypotenuse, so it's always less than 1.

5 0

3 years ago

Do the ratios 2:4 and 5:10 form a proportion?<br> yes or no

Kisachek [45]

Answer:

Yes, the ratios do form a proportion.

5 0

2 years ago

Greg builds a new pond which has a volume of 7.35 m3. What is the width of the pond?

arsen [322]

The pong will be at 3.5 m

5 0

4 years ago

2⋅(3 6 ⋅ 3−5) Evaluate the expression.

aleksley [76]

On 3 and 6 you did not clarify whether it is addition, subtraction, multiplication, or division.
Therefore, I have worked out all possible solutions.

If 2(3 - 6 x 3 - 5) then the solution is 12.<span>

If 2(3 + 6 x 3 - 5) then the solution is -36.</span><span>

If 2(3 / 6 x 3 - 5) then the solution is -2.

If 2(3 x 6 x 3 - 5) then the solution is -72.</span>

8 0

3 years ago