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Vikki [24]
2 years ago
9

If the radius of a flying disc is 7.6 centimeters, what is the approximate area of the disc?

Mathematics
2 answers:
adell [148]2 years ago
7 0
Area = pi * r^2
A = 3.14 * 7.6^2
A = 181.37

In short, Your Answer would be 181.37 cm^2

Hope this helps!
myrzilka [38]2 years ago
6 0
To find the area the formule is pi(r^2)      pi(radius times radius)  
3.1416 (7.6(7.6)) = <span> 181.458816


</span>
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Prove the trigonometric identity!<br><br> Please help!! 50 Points!
Rudiy27

Answer:

:)

Step-by-step explanation:

For simplicity I will substitue x for β.

1-sin(2x)=(cosx-sinx)^2\\1-2sin(x)cos(x)=cos^2x-2sin(x)cos(x)+sin^2x\\1=cos^2(x)+sin^2(x)\\1=1

In the first step I used the identity

sin(2x)=2sin(x)cos(x)

And I factored out (cosx-sinx)^2

Then it's just simple algebra to cancel till the 3rd step where we used another identity derived from the Pythagorean Theorem.

cos^2(x)+sin^2(x)=1

That's it!

3 0
2 years ago
How is -16/20 and 20/-25 represent the same rational number
sammy [17]

Answer:

-.8

Step-by-step explanation:

ok so if you divide -16 by 20 you will get -0.8

and if you divide 20 by -25 your answer also be -0.8

they are equal

4 0
3 years ago
The area of a rectangle is 44m. The height is 11/3m. What is the length?
iogann1982 [59]

Width of the rectangle is 12m

<u>Explanation:</u>

<u></u>

Area of rectangle = 44m

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area of rectangle = length X breadth

44 = \frac{11}{3} X b\\b = 12m

Therefore, width of the rectangle is 12m

4 0
3 years ago
I believe this is 10x but I don’t know
NeTakaya
Yes the answer I should be 10.
3 0
3 years ago
Read 2 more answers
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cupoosta [38]
<span>add 2/9x to both sides, if you do that you get 2/9x+y=3. If you want to simplify it multiply everything by the denominator, in this case, 9 so then you would have 2x+9y=27 

Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.
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2 years ago
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