Answer:
80% or 4/5
Step-by-step explanation:
the probability of not choosing a black shirt
P = number of shirts that are not black ÷ total number of shirts
Total number of shirts = 10
Number of black shirts = 2
Number of shirts that are not black = 10-2 = 8
P = 8/10 = 4/5 or 80%
13.75 or 13 3/4
It is 5/16
By the binomial theorem,
where
Then the coefficients of the terms in the expansion are, in order from to ,
∠EGF = 1/2( 180 - 50) = 1/2(130) = 65
∠CGF = 180 - 65 = 115.