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3 years ago

Work out the value of

2 " align="absmiddle" class="latex-formula">

Mathematics

1 answer:

Contact [7]3 years ago

5 0

Answer:

Answer is 12

Step-by-step explanation:

ok 3x2=6 1ñ 2 12

ok 3

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The following data represent the flight time (in minutes) of a random sample of seven flights from one city to another city. 28

anzhelika [568]

Answer:

$Range = 281-256= 25$

In order to calculate the sample deviation we need to calculate the mean given by:

$\bar X = \frac{\sum_{i=1}^n X_i}{n}$

And replacing we got:

$\bar X= 265$

And the standard deviation can be calculated with this formula:

$s = \sqrt{\frac{\sum_{i=1}^n (X_i -\bar X)^2}{n-1}}$

And replacing we got:

$s = 8.426$

Step-by-step explanation:

For this case we have the following data given:

281, 269, 259, 265, 256, 259, 266

The range is defined as:

$Range = Max -Min$

And if we replace we got:

$Range = 281-256= 25$

In order to calculate the sample deviation we need to calculate the mean given by:

$\bar X = \frac{\sum_{i=1}^n X_i}{n}$

And replacing we got:

$\bar X= 265$

And the standard deviation can be calculated with this formula"

$s = \sqrt{\frac{\sum_{i=1}^n (X_i -\bar X)^2}{n-1}}$

And replacing we got:

$s = 8.426$

4 0

3 years ago

What is the greatest common factor of 35 and 63

Vitek1552 [10]

The GCF (greatest common factor) of 35 and 63 is 7.

5 0

3 years ago

Read 2 more answers

Please help will mark brainlyiest -3.3 x -6/7

Airida [17]

Answer:

the answer is 2.828 or 99/35

3 0

2 years ago

Read 2 more answers

8/9 times x/6 find the missing length and reduce

Darina [25.2K]

You can make a proportion

$\frac{8}{9} = \frac{x}{6}$

Cross multiply

8 × 6 = 48

Now, divide 48 by 9

48 ÷ 9 = 48/9

x = 48/9

7 0

4 years ago

Which is the graph of 3x-4y = 6

Inessa [10]

Reformat the equation to be in terms of y.
4y= 3x-6
y=3/4x -6/4
The y intercept when x=0 is -6/4
The x intercept when y=0 is 2
Simply draw the graph using these two points

6 0

4 years ago

Read 2 more answers