Answer:
first and last
Step-by-step explanation:
Total observations:
3 + 7 + 7 + 4 + 1 = 22
There are 22 observations, so data from 22 households
Median position: (n + 1)/2
(22 + 1)/2 = 23/2 = 11.5th value
median is the average of 11th and 12th values, both are 2. So the average is also 2
Therefore, Centre is at 2
Given:
Consider the below picture attached with this question.
The given expression is:
To find:
The next step.
Solution:
We have,
Cancel out the common factors.
Therefore, the correct option is D.
Answer:
1/3
Step-by-step explanation:
We are given ...
barrettes : hair ties = 5 : 7
barrettes : hair bands = 5 : 8
Then the combined ratios are ...
barrettes : hair ties : hair bands = 5 : 7 : 8
For every 5 barrettes, there are 7+8 = 15 hair ties and bands, so their ratio is ...
barrettes/(hair ties and bands) = 5/15 = 1/3
Ms Francis would need to rent 6 tables in order to get everyone their own side.
She could have all the children, sitting at their tables, having their own side, but the 6th table just having the two other kids.
Ms Francis shouldn’t be having such a large party in the midst of a pandemic.
Answer:
(t^2 -4) (t^2 +4)
(t-2)(t+2)(t^2+4)
Step-by-step explanation:
t^4 - 16
We can write this as the difference of squares
We know the dfference of squares is
(a^2 - b^2) = (a-b) (a+b)
( t^2 ^2 - 4^2) = (t^2 -4) (t^2 +4)
We can write t^2 -4 as the difference of squares
t^2 -4 = t^2 -2^2 = (t-2)(t+2)
Replacing this in
( t^2 ^2 - 4^2) = (t^2 -4) (t^2 +4) = (t-2)(t+2)(t^2+4)
