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aniked [119]
3 years ago
7

A circle has a diameter of 24 units. Find the circumference and area of the circle in terms of π.

Mathematics
2 answers:
enyata [817]3 years ago
7 0
Circumference=24 pi
Area=144 pi, shown clearly in photo

Aloiza [94]3 years ago
7 0

Answer:

C ≈ 75.4

A ≈ 452.39

Step-by-step explanation:

r = d/2 = 24/2 = 12

Circumference = 2πr = 2·π·12 ≈ 75.39822 ≈ 75.4

Area = πr^2= π·12^2 ≈ 452.38934 ≈ 452.39

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Answer:

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Step-by-step explanation:

S = πrl + πr^2 solve for l

πrl = S - πr^2

  l = (S - πr^2) / πr

Answer is B.    l = (S - πr^2) / πr

7 0
3 years ago
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Suppose that a certain college class contains students. Of these, are juniors, are mathematics majors, and are neither. A studen
ipn [44]

Answer:

<h2>2/5</h2>

Step-by-step explanation:

The question is not correctly outlined, here is the correct question

<em>"Suppose that a certain college class contains 35 students. of these, 17 are juniors, 20 are mathematics majors, and 12 are neither. a student is selected at random from the class. (a) what is the probability that the student is both a junior and a mathematics majors?"</em>

Given data

Total students in class= 35 students

Suppose M is the set of juniors and N is the set of mathematics majors. There are 35 students in all, but 12 of them don't belong to either set, so

|M ∪ N|= 35-12= 23

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So the probability that a random student is both a junior and social science major is

=P(M∩N)= 14/35

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7 0
2 years ago
-7•(-9) <br><br> need help on this one with full work including
Veseljchak [2.6K]

Answer:

-7×-9

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Step-by-step explanation:

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6 0
3 years ago
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Kruka [31]

Answer:

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Step-by-step explanation:

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To work it out:
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Hope to have helped :)
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3 years ago
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