An efficiency expert is doing a study of a certain fast food restaurant. She observes that a particularly clumsy waiter drops 30% of all the hamburgers that he serves. What is the probability that he will drop exactly four of the next ten?

Hello,

I don't know the words used for that binominal exercice.

Step-by-step explanation:

given : the shape of his satellite can be modeled by   where x and y are modeled in inches.

now,the given equation   is a equation of parabola.

here, coefficient of x is positive, hence the parabola opens rightwards.

on comparing this equation with standard equation , we get

in standard equation, coordinates of focus=(0,m)

thus for given equation coordinates of focus=(0,1.5)

step-by-step explanation:

the answer is 40.

proof: