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erastovalidia [21]
3 years ago
6

 i will give brainliest for question 18 pts

Mathematics
2 answers:
kow [346]3 years ago
3 0

Answer:

the answer is 20

Step-by-step explanation:

Ostrovityanka [42]3 years ago
3 0

Answer:

2o

Step-by-step explanation:

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26% = 26%/100%
26/100, 13/50
answer is 13/50
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Elvin read 4/7 of the pages in his book. He has 226 pages left to read. How many pages has he read already?
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Three same-sized cubes are attached to the top of a rectangular prism as shown below
-Dominant- [34]

Answer:

458 cm²

Step-by-step explanation:

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6 0
3 years ago
12 is 4% of what number
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Step-by-step explanation:

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QUESTION 1 The Senator of Azenator State, is worried about the rising numbers in high blood pressure related deaths in his Juris
Solnce55 [7]

Answera and Step-by-step explanation: Correlation Coefficient is the measure of how strong two variables are. There are numerous types of correlation coefficients and the product moment correlation coefficient, also known as <em>Pearson's correlation</em> or <em>Pearson's R</em> is most commonly used in linear regression. The formula to calculate it is:

r = n(∑xy) - (∑x)(∑y) / √[∑x² - (∑x)²].[n∑y² - (∑y)²]

To find the value of R:

1) Separate the values of X and Y and out them in 2 columns.

2) Add 3 more columns: for xy, x² and y²;

3) Find the values of each column;

4) Add each column;

5) Put the sum of each column in its place on the formula above;

6) Find the correlation.

i) For this question, r = 0.9645. As it's <u>positive</u>, means that the two variables are directly linked, i.e., an increase in one variable will produce an increase in the other variable in the same proportion.

ii) The Senator should distribute Norvasc to the old adults groups, because, as the <u>population grows</u>, the death associated with high blood pressure will <u>also grow</u>, as explained by the correlation coefficient.

7 0
3 years ago
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