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Volgvan
3 years ago
15

Problem Set

Mathematics
1 answer:
insens350 [35]3 years ago
7 0

5 liters (L) of 30% bleach solution contains 0.3×(5 L) = 1.5 L of bleach.

3 L of 50% bleach contains 0.5×(3 L) = 1.5 L of bleach, too.

Combined, you would have 8 L of solution containing 1.5 L + 1.5 L = 3 L of bleach, so the concentration of bleach is

(3 L) / (8 L) = 0.375 = 37.5%

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Round 254 212 610 to the nearest million
mafiozo [28]

Answer:

254,000,00

I hope this helps

6 0
2 years ago
20 POINTS PLEASE HELP ASP D:
Butoxors [25]

Hi there!

When two lines intersect, we know that the ones on the opposite sides are equal to one another. Thus, we know that the angle opposite of the one marked with 90 degrees (on the other side of the intersection) is also 90 degrees.

We know that a full turn is 360 degrees. We can see that the two 90 degrees make up part of the turn, and the other pair of angles, both of which are equal to x (as per the reasoning above), make up the rest. We know that the two 90 degrees, added together, is equal to 180 degrees. This means, after subtracting 180 from 360, that 180 degrees are remaining that aren't the 2 90 degrees, and are make up of two angles both measuring x degrees.

As we know that they both measure x, then we know that we say 2x = 180, which gives us x = 90.

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6 0
3 years ago
Find the exact value of cot7pi/4
nata0808 [166]

Answer:

-1

Step-by-step explanation:

The radian gives the coordinates: ((\sqrt{2 } /2,-\sqrt{2 } /2) (found using the unit circle)

cot=x/y

Plug the x and y coordinates into their respective places in the equation.

You get the answer of -1.

7 0
2 years ago
Read 2 more answers
If 450 birds have to fit into 18 enclosures, & there are 3 enclosures in each section of the zoo, how many birds are in each
ANEK [815]
<h3>Answer:</h3>

There are 75 birds in each section

<h3>Step-by-step explanation:</h3>

First, lets see how many in each enclosure so we have an amount to multiply by 3

450/18 = 25 birds per enclosure.

Now lets see how many birds would be in 3 enclosures i.e. a section

25 * 3 = 75

3 0
3 years ago
If 1 megabyte is equal to 10^6 bytes and 1 gigabytes is equal to 10^9 bytes, how many gigabytes are there in 1 megabyte?
Finger [1]

Answer:

The answer is 1^{-3}

Step-by-step explanation:

To find how many gigabytes there are in 1 megabyte, we need to divide 1 megabyte by one gigabyte.

\frac{10^{6}}{10^{9}}

To divide exponents, you subtract them.

\frac{10^{6}}{10^{9}}=10^{-3}

Then divide 10/10.

\frac{10^{6}}{10^{9}}=1^{-3}

Your answer is 1^{-3}. (which equals 0.001)

I hope this helps! :)

~Peredhel

8 0
3 years ago
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