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Tpy6a [65]
3 years ago
8

The shape of a carpet is a semicircle. Use 22 7 as an approximation for π. a) Find its area. b) Janice wants to put a fringed bo

rder on all sides of the carpet. How many feet of fringe are needed?

Mathematics
1 answer:
Trava [24]3 years ago
7 0

Answer:

Step-by-step explanation:

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What is the following expression when simplified 5x + 8(5 + 2x)?
denpristay [2]

Answer:

5x+56

Step-by-step explanation:

5x+8(5+2)

5x+8(7)

6 0
3 years ago
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Assume that when adults with smartphones are randomly​ selected, 52​% use them in meetings or classes. If 14 adult smartphone us
emmasim [6.3K]

The probability that fewer than 4 of then use their smart phones in meetings  or classes is 0.00030243747.

Step-by-step explanation:

Fewer than 4 means ,less than 4 which is any number less than 4 and not including 4. This is 3, 2,1 and 0. So you find the probability that exactly 3 of then use their smart phone, exactly 2 of them use their smart phones, exactly 1 of them use his/her smart phone and none of them.

Given that 52% use smartphones in meetings and classes =0.52

Thus the remaining 48% do not use smartphones in meetings and classes=0.48

For C(14,3) you will have "14 chose 3", number of ways of choosing 3 out of 14'

=(0.52)³ *(0.48)⁹=0.00019018714

For C(14,2) you will have "14 chose 2", number of ways of choosing 2 out of 14

=(0.52)²*(0.48)¹²=0.00004044841

For C(14,1) you will have "14 chose 1", number of ways of choosing 1 out of 14

=(0.52)¹*(0.48)¹³=0.000037337

For  C(14,0) you will have "14 chose 0", number of ways of choosing 0 out of 14

=(0.52)⁰*(0.48)¹⁴=1*0.00003446492=0.00003446492

The probability that fewer than 4 of them use their smartphones in meetings or classes will be

0.00019018714 +0.00004044841+0.000037337+ 0.00003446492=0.00030243747

Learn More

  • Binomial random variable https://brainly.in/question/10088120

Keywords : Probability, random variable, binomial distribution

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4 0
3 years ago
Tony misplaced 7 77 stamps from his collection. He knows that each stamp of his is worth $ 0 . 1 5 $0.15dollar sign, 0, point, 1
denis23 [38]
I take it that only 7 stamps are misplaced and that we are asked for the total value of the stamps including those which have been misplaced. 
If each is worth $0.15 then, the total worth of 7 stamps is $1.05. Then, we add this value to the value of his remaining stamps, $5.55, the answer would be $6.60. 
7 0
3 years ago
Make a table of ordered pairs for the equation.
Natasha_Volkova [10]

Answer:

65

Step-by-step explanation:


4 0
3 years ago
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What are the domain and range of C(x) = -18
inessss [21]

Answer:

the answer is D becuase it is the only one with a range of -18

6 0
3 years ago
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