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aniked [119]
3 years ago
14

What is the percent of change from 2000 to 200

Mathematics
1 answer:
Kamila [148]3 years ago
8 0

Answer: 90% decrease

Step-by-step explanation: First determine whether the number is increasing or decreasing. Since it changes from 2,000 to 200, it's going down so it's decreasing.

Now to find the percent decrease, we divide the

amount of change by the original number.

The <em>amount of change</em> is the difference between the two numbers

which in this case is 2,000 - 200 and the original number is 2,000.

So we have \frac{2,000 - 200}{2,000}.

2,000 - 200 is 1,800.

So we're left with 1,800/2,000 and dividing

2,000 into 1,800 gives us 0.9.

Remember however that our problem is

asking for a <em>percent</em>, not a decimal.

So we need to write 0.9 as a percent and we can do

that by multiplying it by 100 and adding the percent sign.

So 0.9 becomes 90%.

So when a number changes from 2,000 to 200,

it has decreased by 90%.

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Answer:

Step-by-step explanation:

Since area of a circle is pi.r^2

We know that diameter is 20

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So it becomes

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The period of a periodic function is 8 s . How many cycles does it go through in 30 s ?
kap26 [50]

The number of cycles of the periodic function is 3.75 cycles if the period of a periodic function is 8 s option (G) 3.75 is correct.

<h3>What is a function?</h3>

It is defined as a special type of relationship, and they have a predefined domain and range according to the function every value in the domain is related to exactly one value in the range.

It is given that:

The period of a periodic function is 8 s

From the question:

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n = 3.75 cycles

Thus, the number of cycles of the periodic function is 3.75 cycles if the  period of a periodic function is 8 s option (G) 3.75 is correct.

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7 0
1 year ago
The area of the sector formed by the 110 degree central angle is 40 units squared what is the radius
olga2289 [7]
We know that
area of the circle=pi*r²

if 360° (full circle) has an area of-------------> pi*r²
110°------------------------------> 40 units²
pi*r²=40*360/110--------> pi*r²=130.91------> r²=130.91/pi-----> r²=41.69
r=6.46 units

the answer is
the radius is 6.46 units
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2 years ago
To get from point A to point B you must avoid walking
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p

the rigth awnser is 41 meaters east to were

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possible to walk through the

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