Answer:
24/49
Step-by-step explanation:
Answer:
Option (3) is correct.
Step-by-step explanation:
We need to find the expression that is equivalent to
.
The property is : 
Here, a = 1/2
So,

We know that, 

So,
is equivalent to 
Hence, the correct option is (3).
Answer:
If he scored x points in the first half, then x + p = 31
Answer:
d.16
Step-by-step explanation:
For the first digit there are 7 choices. For the second digit there are 6 choices (because we can't use the same one again). And so on, until there is only one choice for the last digit.
The number of possible codes is this:
7*6*5*4*3*2*1 = 7! = 5040