Answer:

Step-by-step explanation:
we know that
A quadratic function in factored form is equal to

where
a is the leading coefficient
x_1 and x_2 are the zeroes of the function
substitute the given values

Find the value of a
Remember that
For x=0 ----> f(0)=4
substitute


so




Answer:
where is required question. comment me.
The distance between P and Q is 10 units. hope this helps have a nice day
Answer:
0.8213
Step-by-step explanation:
-This is a binomial probability problem given by the function:

Given that n=21 and p=0.2, the probability that she experience a delay on at least 3 days is calculated as:

Hence, the probability that she experience delay on at least 3 days is 0.8213