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:
<u>Step-by-step explanation:</u>
All of the fractions should equal to 1. Let x represent the unknown fraction.
The perimeter of a two-dimensional figure is always the sum of its sides.
The exercise mat has a perimeter (P) of <u>36 feet</u>. ...
Let length be <em>L</em>, and width be <em>W</em>.
P = 36
L = 2w
P=2(l+w)=2·(12+6)=36
L = 12 feet
W = 6 feet
Answer:
6 inches
Step-by-step explanation:
10*3=30
36-30=6
Answer:
these are quadratic graphs
Step-by-step explanation: