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Novay_Z [31]
2 years ago
5

R − 84 2 = 4 r = what

Mathematics
1 answer:
Neko [114]2 years ago
6 0

Answer:

..................r = 838

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Please help! i was wondering how you would solve this question!
Anon25 [30]

Answer:  C.  150 km²

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

Use similar triangle proportion to find x:

\dfrac{x}{4.5}=\dfrac{15.3+7.4}{7.4}\\\\\\x=\dfrac{4.5(22.7)}{7.4}\\\\\\x=13.8\\\\\text{Notice that x is the diameter of the circle}\implies r=\dfrac{13.8}{2}=6.9\\\\\\\text{Find the area of the circle using }A=\pi r^2\\A=\pi (6.9)^2\\\\.\ =\pi (47.6)\\\\.\ =149.6\\\\.\ \approx150

4 0
3 years ago
Subtract the sum of (3/5+1/5i) and (4/5-2/5i) from (9/5-1/5i). The result is
olga_2 [115]
<span>Subtract the sum of (3/5+1/5i) and (4/5-2/5i) from (9/5-1/5i). 
The sum will be:
(3/5+1/5i)+(4/5-2/5i)
=(3/5+4/5)+(1/5i-2/5i)
=7/5-1/5i
subtracting the results we get:
(9/5-1/5i)-(7/5-1/5i)
=(9/5-7/5)+(-1/5i+1/5i)
=2/5+0
=2/5
Answer: 2/5</span>
7 0
3 years ago
Where would it go I know how to do X axis but not Y
Vaselesa [24]

Answer: (-1,2) and (2,2) Make sure to see explanation!

Step-by-step explanation:

Well you need to remember the Y reflection rule!

To reflect over the Y axis you must do this:

Take the points in this case

(1,2) and (-2,2)

And you need to use the equation (x,y) --> (-x,y)

So the new points you NEED TO GRAPH ARE

(-1,2) and (2,2)

Hope this helped!

8 0
3 years ago
Read 2 more answers
Please help lollll i will give brainliest
Ronch [10]

Answer: 2nd answer

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Reilly adds 45.3 and 3.21. should hi sum be greater than or less than 48
romanna [79]
45.3+3.21=48.51, this is greater then 48
3 0
3 years ago
Read 2 more answers
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