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Rzqust [24]
3 years ago
13

Find the area of the shaded regions. Give your answers as a completely simplified exact value in terms of pi (no approximations)

Mathematics
1 answer:
KonstantinChe [14]3 years ago
7 0
Answer = 7pi
Go in go knbjjjjb bxh b

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A study of consumer smoking habits includes A people in the 18-22 age bracket (B of whom smoke), C people in the 23-30 age brack
madreJ [45]

The correct question is:

A study of consumer smoking habits includes 167 people in the 18-22 age bracket (59 of whom smoke), 148 people in the 23-30 age bracket (31 of whom smoke), and 85 people in the 31-40 age bracket (23 of whom smoke). If one person is randomly selected from this sample, find the probability of getting someone who is age 23-30 or smokes

Answer:

The probability of getting someone who is age 23-30 or smokes = 0.575

Step-by-step explanation:

We are given;

Number consumers of age 18 - 22 = 167

Number of consumers of ages 22 - 30 = 148

Number of consumers of ages 31 - 40 = 85

Thus,total number of consumers in the survey = 167 + 148 + 85 = 400

We are also given;

Number consumers of age 18 - 22 who smoke = 59

Number of consumers of ages 22 - 30 who smoke = 31

Number of consumers of ages 31 - 40 who smoke = 23

Total number of people who smoke = 59 + 31 + 23 = 113

Let event A = someone of age 23-30 and event B = someone who smokes. Thus;

P(A) = 148/400

P(B) = 113/400

P(A & B) = 31/400

Now, from addition rule in sets which is given by;

P(A or B) = P (A) + P (B) – P (A and B)

We can now solve the question.

Thus;

P(A or B) = (148/400) + (113/400) - (31/400)

P(A or B) = 230/400 = 0.575

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3 years ago
The mid-point of the straight line joining A(4,-3), B(6,-2) is located at C.
baherus [9]
I hope this helps you

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2 years ago
The product of eight and the sum of a number and nine
Crazy boy [7]
8(n + 9) <== ur expression
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Choose the algebraic expression that describes: 13 less than y.
Harrizon [31]
Y-13 because it’s less than y so it’s subtracting from the y
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Whats the anwser to -3(x-9)=-3
Delvig [45]

Step-by-step explanation:

-3x + 27= -3

-3x = -3-27

-3x = -30

x= 10

7 0
2 years ago
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