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bogdanovich [222]
3 years ago
15

Find the area of a sector that has a central angle of 40 and a radius of 2 cm. Round your answer to the nearest 100th. Use 3.14=

Mathematics
1 answer:
Aneli [31]3 years ago
6 0
I think the answer is around 1.4 as you need to multiply the area by 1/9 after finding the real area. 
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5.A rectangle has a length of 20 centimeters and a width of 4 centimeters. What is the area of the rectangle?
yawa3891 [41]
A = LW
A = 20 * 4
A = 80 cm^2
7 0
3 years ago
Read 2 more answers
Identify the factors of x2 + 25y2. ...?
Sveta_85 [38]
Is the equation like this? x^2 + 25y^2?
If the equation is like that, the answer would be (x-5y)^2 or (x-5y)(x-5y).
how did I get this? Just divide the factors or the get the square root of 25y^2 and it would be 5y. Then just try if it is positive or negative. In this case, it is negative because there is no factor w/ no exponential form. I hopemy answer helped you.
4 0
4 years ago
What is the additive inverse of -2 + 8i?
tatuchka [14]

Answer:

2 - 8i

Step-by-step explanation:

The additive inverse of something is basically the opposite of it. Another way to say this is that when you add the additive inverse to -2 + 8i, it will equal 0.

<u>An example:</u>

The additive inverse of 7 is -7 because not only is it the opposite, but also when you add 7 and -7, it equals 0.

<u>To solve</u>

So all you need to do is find the opposite of -2 + 8i. You can write it as:

-(-2 + 8i)  With the negative in the front because we want to find the opposite.

This then equals:

2 - 8i

You can check your answer by adding -2 + 8i and 2 - 8i to see if it equals 0:

(-2 + 8i) + (2 - 8i)  →  and it does equal 0

<u>ANSWER:</u> 2 - 8i

Hope you understand and that this helps with your question! :)

8 0
3 years ago
When the product of 0.2 and 0.3 is subtracted from the sun of 0.2 and 0.3 what is the difference
shtirl [24]

(Corrected) Explanation:

(0.2 x 0.3)-(0.2 + 0.3)

0.06 - 0.50

-0.44

Therefore, 0.44 is your answer.

3 0
3 years ago
Read 2 more answers
A passenger train has tickets available for 12 window seats and 8 aisle seats. The next person to buy a ticket will be randomly
k0ka [10]
The answer is 2/5.

There is an 8/20 chance that the next person will receive a window seat. You simplify that probability to get your answer. 8/20 becomes 2/5. So the answer is 2/5.

4 0
3 years ago
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