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3 years ago

Please help asap!! I will mark you as brainliest :)

Mathematics

1 answer:

zmey [24]3 years ago

3 0

Answer:

the answer is 2.4 million

Step-by-step explanation:

In order to find the rate of change, you first must find the amount that the population grew in the time period:

314-302 = 12

Now you need to calculate the number of years:

2012-2007 = 5

Lastly, divide the amount of change by the number of years:

12/5 = 2.4

The population grew by 2.4 million people per year. Hope this helps! :)

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Cell phone Plan A costs $70 per month and comes with a free $500 phone. Cell phone Plan B costs

Agata [3.3K]

Answer:

25 Months

Step-by-step explanation:

Let's make the equations first,

Plan A: 70x Plan B: 50x+500...

Now we make it into an equivalent equation:

70x=50x+500...

Then we solve:

70x=50x+500-50x -50x20x=500...

÷20 ÷20x=25...

To check if it's correct, we just plug it in:

70(25)=50(25)+500...

1750=1750...

Brainliest Answer please? Hope this helps! Good luck!

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3 years ago

Using disks or washers, find the volume of the solid obtained by rotating the region bounded by the curves y=x−1 y=0 x=2 and x=5

Irina-Kira [14]

Using disks ...
$V= \pi \int\limits^5_2 {(x-1)^{2}} \, dx =\pi(\frac{1}{3}(5^{3}-2^{3})-(5^{2}-2^{2})+(5-2))=21\pi$

The volume is 21π units³ ≈ 65.97 units³

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3 years ago

The length of the hypotenuse of a 45°-45°-90° triangle is 22. Find the length of one leg.

Shkiper50 [21]

Check the picture below.

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3 years ago

What is: 6x^2-4x-10?

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3 years ago

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Determine if each pair or ratio or rate is equivalent. 16 out of 28 and 240 of 560

Keith_Richards [23]

Those ratios are not equivalent because 240 divided by 16 is 15 and 560 divided by 28 is 20.

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3 years ago