Answer:
You do 2 times 5x, the simplify.
Answer:
The y-intercept is (0,-6), the vertex is (4,2)
Step-by-step explanation:
Answer:
--- Variance
Step-by-step explanation:
Given
Solving (a): Calculate the mean.
The given data is a grouped data. So, first we calculate the class midpoint (x)
For 51 - 58.
For 59 - 66
For 67 - 74
For 75 - 82
For 83 - 90
So, the table becomes:
The mean is then calculated as:
-- approximated
Solving (b): The sample variance:
This is calculated as:
So, we have:
-- approximated
Answer:
1000000000000
Step-by-step explanation:
2000^6/8000^2=1000000000000
Answer:
5 is a posotive number and -5 is a negitave number
Step-by-step explanation: