50a3 + 10a2
2 answers:
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Answer:
The bus would be 36 times late in 400 times of when Fred takes the bus
Step-by-step explanation:
Given that the probability of being the bus late is 0.09.
In order to find the number of times the bus will be late will be calculated by multiplying the total number of observations by probability.
It is also given that the total number of days he waits for bus is 400 times.
So,
The bus will be:
Hence,
The bus would be 36 times late in 400 times of when Fred takes the bus
Answer:
option-D
Step-by-step explanation:
we are given
Let's assume it is equal to 0
We can use quadratic formula
Suppose, we are given quadratic equations as
we can compare and find a,b and c
a=1 , b=2 , c=4
now, we can plug values
and we get
now, we can simplify it
and we get