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3 years ago

Write tally marks to show the number 8.

Mathematics

2 answers:

sladkih [1.3K]3 years ago

8 0

Look at the attatchment below

Please make sure to check with classmates for answers, to help each other.

ale4655 [162]3 years ago

7 0

1111 slanted line 111 op

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What is the square root of 149 rounded to the nearest tenth?

Ad libitum [116K]

Rounded to the nearest tenth, the square root of 149 is 12.2.

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3 years ago

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What is the distance between (8, -3) and (4, – 7)?

Dahasolnce [82]

Answer:

Step-by-step explanation:

using

$\sqrt{(x2 - x1) + (y2 - y1)}$

$\sqrt{(8 - 3) + (4 - ( - 7)}$

$\sqrt{5 + 11}$

$\sqrt{16}$

$= 4$

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3 years ago

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A sample of 30 distance scores measured in yards has a mean of 7, a variance of 16, and a standard deviation of 4. You want to c

Nikolay [14]

Answer:

21, 144, 12

Step-by-step explanation:

Given that a sample of 30 distance scores measured in yards has a mean of 7, a variance of 16, and a standard deviation of 4.

Let X be the distance in yard.

i.e. each entry of x is multiplied by 3.

New mean variance std devition would be

E(3x) = $3E(x) = 21$

Var (3x) = $3^2 Var(x) = 9(16) =144$

Std dev (3x) = $\sqrt{144 } =12$

Thus we find mean and std devition get multiplied by 3, variance is multiplied by 9

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3 years ago

Help me plz I need help.

Sever21 [200]

Answer:

Step-by-step explanation:

The sum of the lengths of any two sides of a triangle is greater than the length of the third side.

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3 years ago

Evaluate a+b when a=5/6 and b=3 1/4

NemiM [27]

Answer:

4 1/12

Step-by-step explanation:

a = 5/6 b = 3 1/4 = 13/4

To add 5/6 + 13/4, we have to make the denominators the same:

20/24 + 78/24 = 98/24
To make it back to a mixed fraction:

4 2/24
4 1/12

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3 years ago

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