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Artist 52 [7]
3 years ago
11

What is the percent of change from 82 to 67?

Mathematics
1 answer:
kramer3 years ago
5 0

Answer:

-18.29

Step-by-step explanation:

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Max tosses a Fair coin 3 times what is the probability of getting heads in the first two trials and Tails in the last trial
Gennadij [26K]
.5 * .5 *.5 = 1/8 
-
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the probability to have head is .5 so the probability of tails 1-.5 
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then the first time is head  
the second time is head 
the third time is tail 
so 
.5 * .5 *.5 = 1/8 
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3 years ago
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20 = n/4. Solve for n using reverse operations. Show all work. Your answer​
jok3333 [9.3K]

Answer:

n=80

Step-by-step explanation:

n/4=20

(n/4=20)4 .    to get rid of the denominator u multiply by 4 on both sides

n=80

7 0
3 years ago
What is 2 3/7 times 1/2
avanturin [10]

Answer:

1 3/14

Step-by-step explanation:

You divide everything by 2 because it is a fraction.

3 0
3 years ago
Please help as soon as possible Will mark BRAINLIEST!!!!!
omeli [17]

Answer:

Width = 40ft

Step-by-step explanation:

Area of a rectangle = Length x Width

=> 1600 = 40 x W

=> 1600 = 40W

=> 1600/40 = 40W/40

=> 40 = W

So, the width is 40 ft

6 0
3 years ago
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A market research firm knows from historical data that telephone surveys have a 36% response rate. In a random sample of 280 tel
Rasek [7]

Answer:

0.6604

Step-by-step explanation:

Given that a market  research firm knows from historical data that telephone surveys have a 36% response rate.

Sample size of random sample = 280

We know for samples randomly drawn of large size sample proportion follows a normal distribution with mean= sample proportin and std error

= \sqrt{\frac{pq}{n} }

Substitute p = 0.36 and q = 1-0.36= 0.64

p follows N with mean = 0.36 and std dev = \sqrt{\frac{0.36*0.64}{\sqrt{280} } } \\=0.0287

Using normal distribution values we can find\

P(33.5p.c. < p < 39pc)\\= P(0.335

3 0
3 years ago
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