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3 years ago

Find the square root of √25.65 and correct upto 2 decimal places

Mathematics

1 answer:

yulyashka [42]3 years ago

8 0

5.06

√25.65 = 5.06458...

so, to round it off to 2.d.p, you just count up to two numbers after the decimal point, these number would be 0 and 6. 6 can not be rounded off because the 4 after it is not bigger than 5.

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Use a graphing calculator to find the value of the correlation coefficient r and determine if there is a strong correlation amon

alekssr [168]

Using a calculator, the correlation coefficient is of 0.7649. Since the correlation is greater than 0.6, there is strong correlation.

<h3>What is a correlation coefficient?</h3>

It is an index that measures correlation between two variables, assuming values between -1 and 1.

If it is positive, the relation is positive, that is, they are direct proportional. If it is negative, they are inverse proportional.

If the absolute value of the correlation coefficient is greater than 0.6, the relationship is strong.

Using a calculator, we insert the points (x,y) to find the coefficient. In this problem, the points are given as follows:

(1, 5), (4, 8), (8, 3), (13, 10), (19, 13)

The coefficient is of 0.7649. Since the correlation is greater than 0.6, there is strong correlation.

More can be learned about correlation coefficients at brainly.com/question/25815006

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2 years ago

Whats 3(x+4) In simplyed.

Setler [38]

Answer:

3x + 12

Step-by-step explanation:

Distribute the 3

5 0

3 years ago

Read 2 more answers

Answer like gauss 1+3+5+7+...=999

raketka [301]

1+3+5+7+...+999 =

= 1+2+3+4+...+500

+1+2+3+...+499

= 2·(1+2+3+...+499) + 500

= 2·(499·500)/2 + 500

= 499·500 + 500

= 500·(499 + 1)

= 500·500

= 250.000

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3 years ago

What is 21/99 in a decimal form

Norma-Jean [14]

Answer:

0.2121~

Step-by-step explanation:

It's a repeating number. 0.0212121212

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4 years ago

A survey of 80 sophomores at a certain western college showed that

DIA [1.3K]

1. take English and niether of the other two?
36-6 that we know take all 3
This leave 30.
Subtract the 6 from those taking history and English. Leaves 10.
Subtract the 10 from those taking English.
This leaves 20.
Subtract the 6 from those taking political science and English. Leaves 8.
Subtract 8 from those taking English.
Leaves 12

2. take none of the three courses? 

3. take history, but niether of the other two
Do the same with history as we did with English.
32-6 = 26 -10=16-10=6

4. take political science and history but not english
16-6 (that take all 3) = 10

Hope at least the partial answer helps!

3 0

3 years ago

Find the square root of √25.65 and correct upto 2 decimal places​

Find the square root of √25.65 and correct upto 2 decimal places