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vekshin1
3 years ago
8

Find the variance of the given data rounded to the nearest hundredth 3,4,5,7,10,12,15

Mathematics
1 answer:
True [87]3 years ago
4 0

Answer:

(3 + 4 + 5 + 7 + 10 + 12 + 15)/7 = 8

(3^2 + 4^2 + 5^2 + 7^2 + 10^2 + 12^2 + 15^2)/7 - 8^2 = 17.14285714


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Dots = 5 + 3n<br> How many dots are in the 1000th figure?
Ugo [173]

Answer:

3005 dots

Step-by-step explanation

the number of the figure will take the place for n

so the equation would be:

dots = 5 + 3(1000)

5 + 3000

3005 dots

5 0
3 years ago
Amy has 1/3 hour to do chores
raketka [301]
Okay...Can I have the rest of the question?
3 0
3 years ago
Find the circumference of a circle that has a diameter of 4 m. Use 3.14 for pi. m
Arturiano [62]

Answer:

<h2>12.56 m</h2>

Step-by-step explanation:

The formula of a circumference of a circle:

C=d\pi

<em>d</em> - <em>diameter</em>

<em />

We have <em>d = 4m</em>.

Substitute:

C=4\pi\ m

Use 3.14 for π:

C\approx4(3.14)=12.56\ m

3 0
3 years ago
Does anybody know the answer???
blagie [28]
It would be 30 because In the triangle the angle 2 is 75 so in the parallelogram it is 150. And that is the same for angle 1. And 150 plus 150 is 300. So u need 60 more. U would divide that by 2 because there are two more angles. So angle 3 is 30. And the one diagonal is also 30.
3 0
3 years ago
A company is holding a sales contest for its sales reps. 12 sales reps are based in Office A and 7 sales reps are based in Offic
NikAS [45]

Answer:

55,440 ways

Step-by-step explanation:

In this situation, since the bonuses are different, the order of the sales reps receiveing the bonus matters, thus permutations should be used.

The number of ways to pay the bonuses in office A (pick 3 out of 12) is:

A=\frac{12!}{(12-3)!} =12*11*10 = 1,320\ ways

The number of ways to pay the bonuses in office B (pick 2 out of 7) is:

B=\frac{7!}{(7-2)!} =7*6 =42\ ways

Considering both offices, the number of ways to pay out the bonuses is:

N= A*B = 1320*42\\N=55,440\ ways

3 0
3 years ago
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