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Bezzdna [24]
3 years ago
12

What is Pi? I honestly do not know , I am 10

Mathematics
2 answers:
Ymorist [56]3 years ago
8 0
Pi is the ratio of a circle's circumference to its diameter, which is roughly equivalent to 3.14 (rounded up). 
Hope this helps! :)
choli [55]3 years ago
5 0
Pi is the ratio of a circles circumference to it's diameter.
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The radius of a semicircle is 3 centimeters. What is the semicircle's diameter?​
Aliun [14]

Answer:

6 cm

Step-by-step explanation:

The diameter is 2x the radius

4 0
3 years ago
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Which of the following equations best represents the regression line for the data given in the
True [87]

The regression equation for the data given is y= -8.57 -2.31x

Step-by-step explanation:

The first step is to form a table as shown below;

x           y          xy         x²         y²

1            4           4          1          16

2            1            2          4         1

3            5          15         9         25

4             10         40        16       100

5             16         80        25      256

6              19        114       36        361

7               15       105       49       225

28             60       360      140     984  ------sum

A linear regression equation is in the form of y=A+Bx

where ;

x=independent variable

y=dependent variable

n=sample size/number of data points

A and B are constants that describe the y-intercept and the slope of the line

Calculating the constants;

A=(∑y)(∑x²) - (∑x)(∑xy) / n(∑x²) - (∑x)²

A=(60)(140) - (28)(360)  / 7(140)-(28)²

A=8400 - 10080 /980-784

A= -1680/196

A= - 8.57

B= n(∑xy) - (∑x) (∑y) / n(∑x²) - (∑x)²

B= 7(360)-(28)(60) / 7(60) - (28)²

B=2520 - 1680 /420-784

B=840/-364

B= -2.31

y=A+Bx

y= -8.57 -2.31x

Learn More

Regression equation :brainly.com/question/12280902

Keywords : equations, regression line, data

#LearnwithBrainly

7 0
3 years ago
1. What types of numbers make up the set of rational numbers?
Ad libitum [116K]

Answer:

Natural Numbers, Whole Numbers, and Integers are rational numbers.

Example: {1, 2, 3, -1, -2, -3}

Numbers with repeating decimals and terminating decimals are also rational.

Example: {2.34343434..., 3.45}

If a square root makes a perfect square, then it is rational.

Example: {√16, √100}

Hope this helps.

8 0
3 years ago
Help please very much
Norma-Jean [14]

Answer:

D

Step-by-step explanation:

3 0
2 years ago
Who ever gets this will get a brainlest
yaroslaw [1]

Answer:

.853

Explanation:

4 0
3 years ago
Read 2 more answers
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