Answer:
Probability that both of them use it = 0.3945
Step-by-step explanation:
Given:
Student use app = 63%
Number of chosen student = 2
Computation:
Assume total number of student = 100%
So, probability that both of them use it.
⁶³C₂ / ¹⁰⁰C₂

Therefore, probability that both of them use it = 0.3945
Answer:
C.
Step-by-step explanation: the domain is all even integers from 0 to 6 hours
Answer:
12.5a-8.1b
Step-by-step explanation:
Remove the unnecessary parenthesis
14.2+9.8b-(13.1b-2a)-(3.7a+4.8b)
Collect like terms
12.5a+9.8b-13.1b-4.8b
Giving you the answer of: 12.5a-8.1b
In this question a vital information has been provided. This information can be used for determining the answer to the question that is asked. It is given that 120% of a certain number is 360 pound. The 100% value of the number needs to be determined.
Let us assume the number to be = x
Then
120x/100 = 360
12x/10 = 360
12x = 360 * 10
12x = 3600
x = 3600/12
= 300
Now we can say that the 100% of the number or the actual number is 300 pounds. I hope the problem is clear to you and you can understand the trick involved in the question.