Answer:
And we can find this probability using the normal standard table and we got:
Step-by-step explanation:
Let X the random variable that represent the price of a population, and for this case we know the distribution for X is given by:
Where 
and 
And for this case we want to find the following probability:
And we can use the z score formula given by:
If we find the z score for the limits we got:
And we can find this probability using the normal standard table and we got:
Answer:
option 2
Step-by-step explanation:
just did it
mark brainlyist
Answer:
The answer is letter A.
Step-by-step explanation:
The amount that each company charges per hour on the pool is known, however the amount of hours they will be working is not, and is needed to distinguish which company is cheaper. Therefore, the number of hours is substitued by x and it is right next to the amount they charge for each hour. To find what each company charges, you must sum up what they charge and what they charge per hour, times the hours they will have to work on it( which is unknown and by x).
Answer:
in graph A the vertex is (0,0)
in graph B the vertex is (0,3)
in graph C the vertex is (0,-3)
And in graph D the vertex is (0,-1)
The axis of symmetry for all of the is 0
And i don't remember maximum and minimum sorry
0<span>.115 = 0.1 + 0.01 + 0.005
hope it helps</span>
