y=180-109=71
In a triangle, the sum of angles is 180.
So, x=180-71-44=65
x=65
Answer:
Let's say that I have $1000.00 to invest for 3 years at rate of 6% compound interest.
M = 1000 (1 + 0.06)^3 = $1191.16.
My $1000.00, after 3 years, is worth $1191.16.
Z-score for 30 = (30 - 25) / 5.8 = 0.8621
z-score for 20 = (20 - 25) / 5.8 = -0.8621
:
Note find probabilities from z-tables
:
Probability ( 20 < X < 30 ) = 0.8051 - 0.1949 = 0.6102
Any with an odd number of minus signs.
Perhaps the 1st and 4th, if I read it right.