When you move down you subtract and when you move to the right you subtract when your moving up or to the left you add
Answer:
(1,0)
Step-by-step explanation:
we can't factor this so we'll use the quadratic formula

(use both of them because usually there are two zeroes)
We have

Therefore the x intercept is just (1,0)
Answer:
0.45576
Step-by-step explanation:
z = (x-μ)/σ, where
x is the raw score
μ is the population mean
σ is the population standard deviation.
Standard Deviation = √variance
Mean = 50
= √9
= 3
z = 51 - 50/3
= 0.11111
Probability value from Z-Table:
P(x<51) = 0.54424
P(x>51) = 1 - P(x<51)
= 1 - 0.54424
= 0.45576
The probability that the dealer will sell 51 or more cars is 0.45576
Answer:
The fourth image
Step-by-step explanation: