Answer:
Probability of getting at least 9 out of 18 correctly is 0.0043
Step-by-step explanation:
We have
n = 18
p = 1/5 for correct answer
q = 4/5 for wrong answer
P( 9
X
18) = 1 - P(0
X
8)
= 1 - 0.9957
=0.0043
Step-by-step explanation:
hope this answer will help you
Answer:
First option: Nine mutiplied by the difference of eighty-six and a number.
Step-by-step explanation:
We have the expression:
9(86−x)
We have a difference of number in parenthesis, meaning that this operation will happen first, and then its result will be multiplied by 9
So, we know that this expression means that 9 will be multiplied by something, and this something is a difference of 86 and a number (86 first, and the other number second).
Then, the correct answer would be:
Nine mutiplied by the difference of eighty-six and a number.
First option is the correct one.
The distance between two numbers
![x](https://tex.z-dn.net/?f=x)
and
![y](https://tex.z-dn.net/?f=y)
is given by the absolute value of their difference,
![|x-y|](https://tex.z-dn.net/?f=%7Cx-y%7C)
.
So the distance on the number line between
![12](https://tex.z-dn.net/?f=12)
and
![-5](https://tex.z-dn.net/?f=-5)
is
Answer:
yes
Step-by-step explanation: