Answer:
6/16
Step-by-step explanation:
12/16-3/8
12/16-6/16
6/16=3/8
Answer:
every pair is being multi by the next number
Step-by-step explanation:
2 x 3 =6
3 x 4 = 12 so the second number goes up one every time
Answer:
a) Mean = 2.6
B) Variance = 9.2
Step-by-step explanation:
We are given the following probability mass function in the question:

a) Mean of random variable

b) Variance of the random variable

Answer:
C = 80
Step-by-step explanation:
A cyclic quadrilateral is one where all 4 vertices touch the circumference of a circle.
It has 1 interesting property that should concern you: <B + <D = 180 degrees.
3x - 59 + 2x - 1 = 180 Combine like terms
5x - 60 = 180 Add 60 to both sides.
5x = 180 + 60
5x = 240
x = 240/5
x = 48
Now go to 2x + 4.
x = 48
A = 2*48 + 4
A = 96 + 4
A = 100
So C = 180 - 100
C = 80
I count 4 green stars and 6 red stars
ratio of green to red would be
4 green : 6 red
4:6
if you divide both numbers by 2, cause theyre both even
2:3