Answer:
B. (x - 5)
Step-by-step explanation:
Looking at the graph, you can find the solutions of the function by seeing where it crosses the x-axis.
In this case, the function crosses the x-axis at the point (5,0), which is represented by (x - 5) because it is 5 units to the right of the origin.
The given data; 10,30,20
The mean will be (10+30+20)/3 = 20
Deviation from the mean will be; -10, 10, 0
Square of the deviations will be; 100, 100, 0
The sum of the square of the deviations = 200
The variance will therefore be; sum of the square of deviations from the mean divided by the N (3)
= 200/3 = 66.67
Thus; the variance = 66.67
Answer:
it is D
Step-by-step explanation:
Answer:
90 ≥ (95+78+89+98) ÷ 4
Step-by-step explanation:
It shows that to get 90, it has to be greater than or equal to (95+78+89+98) ÷ 4
Answer:
Cos Z= 4/5
Step-by-step explanation:
Hope it helps you!