Answer:
gives
Step-by-step explanation:
Given
Required
Show that the y values increases by 4 for
We have:
For
Substitute
For
Substitute
So, we have:
Subtract from
Collect like terms
Hence:
gives
i.e. an increment of 4
25 is 5 times as 5 so here is the answer
1007623 is the answer because 442680 plus 564943 is 1007623
So,
The rate of the train is 25mi/20mins. We need (x)mi/hr. We can do that by multiplying by 3.
25(3) = 75
The train's speed in mph is 75 mph.
Answer:
49 cars
Step-by-step explanation:
Probability of cars to be sold in a week,a = 0.2
Probabiity of cars not sold in a week, b = 0.8
Number of cars estimated to be sold in a week = 20 and 60 cars in 3 weeks
Using, P(x) = nCx *(a)∧x * (b)∧n - x, where n = 3 weeks, x = 1 week
P(x=1) = 3C1 * (0.2) * (0.8)² = 3 X 0.2 X 0.64 X 60 cars = 23 cars
P(x=2) = 3C2 * (0.2)² * (0.8) = 3 X 0.04 X 0.8 X 60 cars = 6 cars
Number of cars three weeks from now: 20 + 23 + 6 = 49 cars