Answer:
The two numbers are 9 and 3.
Step-by-step explanation:
x+y=12
x-y=6
---------
2x=18
x=18/2
x=9
9-y=6
y=9-6
y=3
Answer:
(6x-1)(x+2)
Step-by-step explanation:
6x^2 = (6x (x
(6x -1)(x+2)
6x * x = 6x^2
6x * 2 = 12x - 1x = 11x
-1*2 = -2
6x^2 + 11x - 2
Answer:
can you give me a picture of the graph?
Answer:
The probability is 82.64, Given this probability, lights should be installed because they exceed the 80% limit.
Step-by-step explanation:
according to the exercise we can have the data that
the number of accidents per year = 234
then we will look for the number of accidents per week obtaining:
234/52 = 4.5
the probability that more than 2 accidents will occur at most would be
p (x> 2) = 1-p (x <= 2)
replacing the data we get that
1- (p (x = 0) + p (x = 1) + p (n = 2))
= 1-0.1736 = 0.8264
we convert to a percentage and the answer is 82.64%
Given this probability, lights should be installed because they exceed the 80% limit.
