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Komok [63]
3 years ago
9

Please help! i was wondering how you would solve this question!

Mathematics
1 answer:
Anon25 [30]3 years ago
4 0

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

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Hope this helps!! :)
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malfutka [58]

Answer:

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Step-by-step explanation:

Formula

mean = np

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q = 1 - p = 1 - 75% or 1 - 0.75

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For Standard Deviation (SD)

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5 0
3 years ago
Given ∆ABC≅∆PQR, mb=8v-9 , find m 31°<br> b.<br> 52°<br> c.<br> 49°<br> d.<br> 32°
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Hope this helps!
3 0
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