Answer:
A
Step-by-step explanation:
Let the number of hours spent by a costumer be X
As X increases the number of hours increases
It's a proportional relationship. If we draw the graph we see it .
Answer:
-10 3
-9 4
-8 5
-3 10
Step-by-step explanation:
.........
Answer:
0.78
Step-by-step explanation:
given that 80% of an airline's flights depart on-time and 20% do not.
Of those that depart on-time, 95% arrive on-time. Of those that depart late, 10% arrive on-time
Let A be the event that flight departs on time.
Now A and A' are mutually exclusive and exhaustive
Let B be the event the flight arrives on time
Using total probability calculation we have
the chance of someone taking a flight that will arrive on-time
= P(B)
=![P(A)+P(A'B)\\= 0.80(0.95) +0.20(0.10)\\= 0.76+0.02\\=0.78](https://tex.z-dn.net/?f=P%28A%29%2BP%28A%27B%29%5C%5C%3D%200.80%280.95%29%20%2B0.20%280.10%29%5C%5C%3D%200.76%2B0.02%5C%5C%3D0.78)
triangle area: 19cm×17.5cm÷2=166.25
square area: 19cm×19cm=361
all:361+166.25×4=1026
X*100,000 = 240,000
*divide both sides by 100,000
x = 240,000/100,000
x = 24/10
x = 2.4