22,15,13,25,11,1830,17,20,20
what is the first quartile?
what is the median?
what is the third quartile?

Median = 19.5

Quartile for Q1 = 14

Quartile for Q3 = 23.5

Step-by-step explanation:

Our data is

22 15 13 25 11 19 30 17 20 20

Let us first arrange the data in ascending order

11 13 15 17 19 20 20 22 25 30

As there are total 10 terms in the data , the median will be the average of the 5th and th 6th term

5th entity = 19

6th entity = 20

Average

=

Average

=

Median = 19.5

The Formula to find the Quartile is

Quartile For Q1

 term

n=10

 term

 term

2.75 term

This means that Quartile for Q1 is average of 2nd and 3rd term

2nd term = 13 , third term = 15

Average =

=  14

Quartile For Q3

 term

n=10

 term

 term

= 8.25

Hence the Quartile for Q3 will be the average of the 8th and 9th term

8th term = 22

9th term = 25

Average=

= 23.5

Hence Quartile for Q1 = 14

Quartile for Q3 = 23.5

b. an equilateral triangle inscribed in a circle

step-by-step explanation:

we are given the figure of two circles having a triangle inside.

now, we know that,

"when a figure is lying inside an another figure, then the outside figure is known as circumscribed figure and the figure lying inside is referred to as the inscribed figure".

as we see that, the circles are containing the triangle completely.

thus, the circles are the circumscribed figures and the triangle is the inscribed figure.

hence, we get, 'an equilateral triangle is inscribed in a circle'.

the equation cos(35) =a/25 can be used to find the length of bc what is the length of bc? round to the nearest tenth

step-by-step explanation: