Answer:

Step-by-step explanation:
11 is the amount per hour, x stands for the number of hours, and he needs to earn at least 90 dollars.
Answer:
D is a binomial random variable with 
Step-by-step explanation:
For each customer, there are only two possible outcomes. Either they have dogs, or they do not. The probability of a customer having a dog is independent of any other customer. This means that D is a binomial random variable.
Binomial probability distribution
Probability of exactly x successes on n repeated trials, with p probability.
65% of the customers have dogs:
This means that 
15 customers:
This means that 
What type of variable is D?
D is a binomial random variable with 
I took a19=-58 divide it by 19 both side i get a = -58÷19 (note; you can never have a neg. # on the top bring the neg. down to the bottom and divide) now its 58÷-19= -3.05 or -3 (1÷19) so a = -3(1/19) do the same to the other now. answer is a=-7 (17/21)
(3n2-5n+6)+(-8n2-3n-2)
3n2-5n+6-8n2-3n-2
Collect like terms
3n2-8n2-5n-3n+6-2
-5n2-8n+4
Answer:
are this if its a function or not?