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vivado [14]
2 years ago
13

Which equation represents the data in this function table?

Mathematics
1 answer:
Rudiy272 years ago
3 0

Answer: The answer is B. Because 3 multiplied by x and add it by 3 equates to y. example: (x=2) 3x2+3= y. y=9 .

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Find the average rate of change, in people per year, for the population between the years 1900 and 1920.​
elena-s [515]

Step-by-step explanation:

the average change rate of a function f(x) in an interval [x1 .. x2] is

(f(x2) - f(x1)) / (x2 - x1)

in our case that is

(7000 - 2500) / (20 - 0) = 4500 / 20 = 225

the population changed in average by 225 people per year from 1900 to 1920.

5 0
2 years ago
A machine can scan 12 pages in 3/5 minute. How many pages can be scanned in 1 minute?
Sedbober [7]
I believe that the answer is 20. I am not entirely sure though.
7 0
3 years ago
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Please help me i need it in less that 60 sec
Ipatiy [6.2K]

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1/4

Step-by-step explanation:

4 0
2 years ago
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The weight of an organ in adult males has a​ bell-shaped distribution with a mean of 320 grams and a standard deviation of 50 gr
ch4aika [34]

Answer:

a) 68% of organs will be between 270 and 370 grams

b) 95%

c) 5%

d) 97.35%

Step-by-step explanation:

Empirical rule states that

1 standard deviation means a 68% of total area under the normal distribution. On one side is half = 34%.

2 standard deviations means a 95% of total area under the normal distribution. On one side is half = 47.5%.

3 standard deviation means a 99.7% of total area under the normal distribution. On one side is half = 49.85%.

a) Since 1 standard deviation means a 68% of total area under the normal distribution, we have

320 + 50 = 370

320 – 50 = 270

68% of organs will be between 270 and 370 grams

b) Calculate the difference between mean and the percentage of weight of an organ in the problem:

420 – 320 = 100

320 – 220 = 100

Since standard deviation is 50 grams, there is a difference of 2 standard deviations for both sides. According to the rule 95% of the organs are between 200 and 420 grams.  

c) Since 95% of the organs are between 200 and 420 grams, 5% weighs less than 220 grams or more than 420 grams.

d) Calculate the difference between mean and the percentage of weight of an organ in the problem:

420 – 320 = 100

320 – 170 = 150

Since standard deviation is 50 grams, there is a difference of 2 standard deviations for the right side and 2 standard deviations for the left side. According to the rule for 2 standard deviations on one side there is 47.5% and for 3 standard deviations on one side there is 49.85%. so percentage of organs weighs between 170 grams and 420 grams is 47.5% + 49.85% = 97.35%.

8 0
3 years ago
Find the area of the kite brainly
sesenic [268]
Length of diagonal=4.93+10.2=15.13 m
Length of the other diagonal=8.5+8.5=17 m
Area=1/2 x diagonal1 x diagonal2
=1/2 x 15.13 x 17
=128.61 cm^2
7 0
3 years ago
Read 2 more answers
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