There are

ways of selecting two of the six blocks at random. The probability that one of them contains an error is

So

has probability mass function

These are the only two cases since there is only one error known to exist in the code; any two blocks of code chosen at random must either contain the error or not.
The expected value of finding an error is then
Answer:
The question is not explained well, Please explain it better or take a screenshot or something
Step-by-step explanation:
Answer:
x = -3 is the answer. Writing this cause brainly requires a 20 character answer.
Answer: A and C and D and E
Step-by-step explanation:
I got this Q actually
Answer:

Step-by-step explanation:
Perimeter of the given triangular above = sum of all its sides.

Collect like terms


If Bob creates a new triangle that is 7 less than twice of the perimeter of the triangle above, the expression of the new triangle would be:

Simplify


New perimeter = 