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Genrish500 [490]
3 years ago
15

Which is the r- value of the following data to three decimals places?

Mathematics
1 answer:
lyudmila [28]3 years ago
3 0

Answer:

Choice D is correct;

r = -0.953

Step-by-step explanation:

r-value refers to the correlation coefficient between two sets of data and is use to assess the degree of association between two variables.

The value can be calculate manually or by use of software. In this case I employed the correlation function in Ms. Excel an the output is shown in the attachment below.

The function to use is; = correl

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Which equivalent fractions can you use to find the sum of 2/8 + 3/9?
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You can you 72 which would make 2/8 18/72 and 3/9 24/72 which makes the sum 42/72.
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if each cube inside the rectangular prism has an edge length of three-forth inch then what is the volume
sergeinik [125]
Base×hight×width you are just doing 3/4×3/4×3/4 and what ever your answer is put a little 3 above it so it almost looks like an exponent. Pretend that ABC is the answer it would look like this format = ABCinches3 but the three is tiny
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3 years ago
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Santo paid $16.25 to buy 5 children tickets and 1 adult ticket. Hulda paid $24.00 to buy 4 children tickets and 3 adult tickets.
jenyasd209 [6]

Answer:

The price of an adult ticket it $5

Step-by-step explanation:

To solve this, we would find the system of equations. We would set up two equations that will represent the situation.

Let c = price per children ticket

Let a = price per adult ticket

Santo:

5c + 1a = 16.25

Hulda:

4c + 3a = 24

5c + 1a = 16.25 -> a = 16.25 - 5c

4c + 3a = 24

4c + 3(16.25 - 5c) = 24

4c + 48.75 - 15c = 24

-11c + 48.75 = 24

       -48.75   -48.75

-11c = -24.75

/-11       /-11

c = 2.25

5c + a = 16.25

5(2.25) + a = 16.25

11.25 + a = 16.25

-11.25        -11.25

a = 5

a = $5 , c = $2.25

5 0
3 years ago
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Leona spends £465 on a plane ticket and €75 on airport tax. Using £1 = €1.13, what percentage of the total cost does Leona spend
Vilka [71]

Answer:

14.3%

Step-by-step explanation:

£465= 465*1.13€= 525.45€

75/525.45*100=14.3%

7 0
3 years ago
Marking anybody who got it the brainliest​​
-Dominant- [34]

Answer:

c  = sqrt 13.4689 rounded to sqrt 13.5 = 3.5

Step-by-step explanation:

maybe A+ B totals sqrt 13 = 3.60555128  if so they have rounded down for c  to = 9  then 6 + 8 added on ay = sqrt 6+ 8 = sqrt 14 = sq rt 3.74165739 in all effect if triangular = average of a= b = 3.67^2 = 13.4689 then through Pythagoras c  = sqrt 13.4689 rounded to sqrt 13.5 = 3.5

5 0
2 years ago
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