Answer:
Probability that, of the questions studied, all three were the test questions selected by the professor is 0.05
Step-by-step explanation:
Total question gives by teacher = 6
A student has time to study for only three of these six questions.
We are supposed to find the probability that, of the questions studied, all three were the test questions selected by the professor?
So, Probability that, of the questions studied, all three were the test questions selected by the professor =
=
=
Hence Probability that, of the questions studied, all three were the test questions selected by the professor is 0.05
Answer:
I think that the answer is 5a
Check the picture below.
let's recall that a circle has 360°, so that means every two radii coming from the center of the hexagon, will split those 360° in 6 even pieces, 360/6 = 60, namely those two radii make up a 60° central angle, as you see in the picture.
running a perpendicular from the center, we end up with a 30-60-90 triangle, as you see there, and thus we can use the 30-60-90 rule to get the length of "a".
now, keeping in mind that the perimeter of the polygon is simply 4+4+4+4+4+4 = 24.