Step-by-step explanation:
the answer in the picture that i sent
Answer:
B
Step-by-step explanation:
x has to be larger than 2 so the arrow has to point to the right.
The value 2 is included, so the start has to be a closed dot.
Answer:
Step-by-step explanation:
6(-2.1k-2)+(7k+5)
-12.6k-12+7k+5
-5.6k-7
Answer:
Step-by-step explanation:
we are given
A student randomly guesses on 10 true/false questions
so,
there only true and false
so, probability getting true question is
so, probability getting false question is
the student gets 5 out of 10 questions right
so,
r=5
we can use binomial probability formula
now, we can plug values
we can simplify it
and we get