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coldgirl [10]
3 years ago
7

HELP PLEASE HELPPPPP

Mathematics
1 answer:
ad-work [718]3 years ago
3 0
First find the area of the bigger circle (38^2 x pi since the diameter is 76) and the area of the smaller circle is (19^2 x pi)
So.. 4534.16 (use 3.14 for) - 1133.54 = 3400.62 square yds
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Step-by-step explanation:

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Which of the following is the equation of a circle with center (5, -2) and a radius of 3? (1 point)
Oksi-84 [34.3K]
\bf \textit{equation of a circle}\\\\ 
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Read 2 more answers
A class contains 10 sophomores, 15 juniors, and 20 seniors. A committee of 5 students is to be chosen. Each student is equally l
Anna35 [415]

Answer:

P(A) = 0.1620 , P(A|B) = 0.0707

Step-by-step explanation:

Total people = 10 + 15 + 20 = 45 , Sophomores = 10, Juniors = 15 , Seniors = 20

P(A) , exactly 3 juniors selected = (15 c 3) (30 c 2) / (45 c 5) = (455 x 435) / 1221759 = 0.1620  

P (B) , exactly 2 seniors selected = (20 c 2) (25 c 3) / (45 c 5) = (190 x 2300)/ 1221759 = 0.3576

P(A|B), exactly 3 juniors & exactly 2 seniors selected = P (A∩B) / P (B)

(15 c 3) (20 c 2) / (45 c 5) = (455 x 190) / 1221759 = 0.0707

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Can someone please help me with my homework !
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Nah ;)

Step-by-step explanation:

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