Answer:
=10
Step-by-step explanation:
5x-4x². (x=2)
5(2)-4(2)²
=10-0
=<em>1</em><em>0</em>
Answer:
(a) 
(b) 
Step-by-step explanation:
Note that in this problem we have an initial population N = 50, of which 30 fulfill a certain characteristic "m" (belong to the second section). Then, from the population N, a sample of size n = 15 is selected and it is desired to know how many comply with the desired characteristic (second section).
So
Let X be the number of projects in the second section, then X is a discrete random variable that can be modeled by a hypergeometric distribution.
(a)
Therefore, to answer question (a) we use the following equation presented in the attached image:
Where:

Then:

(b)
For part (b) we have:


The car can travel 75 miles on 2 1/2 gal. of gas
Answer:
D
Step-by-step explanation:
something about a formula lol i learned this yesterday i just dont know how to explain
I think it’s 5 because if u do 1.5 / 3in it’s turn out to be 0.5