Answer:
Both the mean and median and they both gives a measure of 17
Step-by-step explanation:
Given the data about the ages of 7 people :
17,20,22,12,15,12,21
Ordered data: 12, 12, 15, 17, 20, 21, 22
To find the median :
Median = 1/2 * (n+1)th term
n = number of observations = 7
Median = 1/2(7+1)th term
Median = 1/2 *8 = 4th term = 17
Mean = Σx / n = (sum of ages) / number of observations
Mean = 119 / 7 = 17
:
Answer:
greater
Step-by-step explanation:
if you add them and do the multiplication it is greater
It’s should be the second on so b and you should get it corrdct
Answer: 4m
Step-by-step explanation:
Note : midpoints divide a line into two equal parts.
To calculate the length of SA;
We can consider the large triangle QRS with
Two midpoints :
A on the line QS, QA = 4m ;
and B on the line RS with RB = 3m
Fron the definition of midpoint :
QS = QA + AS
where QA = AS
QS = 2QA = 2AS
Therefore,
QA = QS
4m = 4m
Answer:
153 in²
Step-by-step explanation:
<h3> Area of irregular figure</h3>
![\sf \boxed{\text{\bf Area of rectangle = length * width}}](https://tex.z-dn.net/?f=%5Csf%20%5Cboxed%7B%5Ctext%7B%5Cbf%20Area%20of%20rectangle%20%3D%20length%20%2A%20width%7D%7D)
![\sf \boxed{\text{\bf Area of square = side *side}}](https://tex.z-dn.net/?f=%5Csf%20%5Cboxed%7B%5Ctext%7B%5Cbf%20Area%20of%20square%20%3D%20side%20%2Aside%7D%7D)
Figure I:
length = 12 in
width = 6 in
Area of figure I = 12 * 6
= 72 in²
Figure II:
length = 13 in
width = 5 in
Area of figure II = 13 * 5
= 65 in²
Figure III:
side = 4 in
Area of figure III = 4 * 4
= 16 in²
Area of irregular shape = 72 + 65 + 16
= 153 in²