Answer:
Ans= 6720 ways
Step-by-step explanation:
From Combination rule from Permutation and Combination, nCr
We use 8^C3 or 8C3,
8x7x6x5x4x3x2x1
-------------------------- =6,720
3x2x1
or
8x7x6x5x4x3! /3!, here the 3! cancels each other out, and we're left with 8x7x6x5x4, which equals 6720.
Answer: Option 'A' is correct.
Step-by-step explanation:
In the binomial probability formula, we have
Here, n = number of events
x = number of trials
p = probability of success
q = probability of failure
x is the number of trials among which we decide the number of successes and number of failures.
So, Option 'A' is correct.
Answer:
D is incorrect
Step-by-step explanation: A is correct because there are 12 cars and 7 trucks. B is correct because there are 7 trucks and 12 cars. C is correct because there are 12 cars and 19 total vehicles(7+12=19). D is incorrect because while there are 7 trucks, there are not 12 vehicles in TOTAL.
Well i can help you with one more which is 9x*3x/9x Since 9*3=27 so 9x*3x=27x Then the 9x is still there ending up with 27x/9x which is your starting fraction :)
Answer:
-8m+9
Step-by-step explanation:
-3(2m-5)-(2m+6)
Multiply 3 by the number within the first pair of parentheses
-6m+15-(2m+6)
Multiply -1 by the numbers within the 2nd pair of parentheses
-6m+15-2m-6
Add like terms
-8m+9
