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mash [69]
2 years ago
9

It takes Ashton 40 minutes to read 50 pages. If

Mathematics
1 answer:
viva [34]2 years ago
5 0
It will take her 2,000 minutes
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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

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4 0
3 years ago
Estimate 5,403 divided by 94​
VLD [36.1K]

Answer:

60

Step-by-step explanation:

7 0
3 years ago
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How do you solve to find the population in 2035? Question 6
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Plug in 35 into the equation P(t)

P(35) = 14(35)^2+650(35)+32,000


5 0
3 years ago
Gianna is preparing for the upcoming tennis season. According to her schedule, she can complete at most 10 workouts this week. I
Fantom [35]
For this case we have the following variables:
 x = the number of drill-based workouts
 y = the number of conditioning workouts
 The system of equations that adapts to the situation is:
 "According to her schedule, she can complete at most 10 workouts this week":
 x + y <= 10
 "It takes Gianna 45 minutes to complete her drill-based workouts and 30 minutes to complete her conditioning workouts. She is required to spend more than 450 minutes on workouts every week"
 45x + 30y> 450
 Answer:
 
A system of inequalities can that be used is:
 
x + y <= 10
 
45x + 30y> 450
5 0
3 years ago
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Please answer !!!!!!!!!!!!!!!!!!!!!!
rewona [7]

Answer:

umm iI not sure but i think it is

Step-by-step explanation:

write out expression

8 0
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