Answer:
a) 
b) 
Step-by-step explanation:
From the question we are told that:
3 coin are tossed
Therefore
Sample space 
Generally the sets that correspond with the result of at most one tail is therefore given as follows

Therefore
The result is at most one tail when

2 ^ (3/5)
the 3is the power and the 5 is the root
Choice D
Answer:
b: a over b divided by do over c
Step-by-step explanation:
You can solve this by plugging in numbers for each variable.
For example: a=1, b=4, c=1, d=2
1/4 ÷ 1/2 = 0.125
If you plug in the numbers for all the equations listed, only 1/4 ÷ 2/1 = 0.125.
Answer:
4561.42
Step-by-step explanation:
Answers:
41.25°
Step-by-step explanation:
Second path ahd third path intersecting form the angle with measure 3x-1.
Three angles 3x-1, 9x-7 and 19° together form straight angle.