Answer: 
Step-by-step explanation:
Given
Sample space is 
There are 8 element in sample space which indicates the outcome of tossing a coin three times
Probability of obtaining at least one head



63% decrease.
0.63•80=50.4kg
80kg-50.4kg=29.6kg
Answer:
3x(x^2+3x-5) - factorised
Step-by-step explanation:
Answer:
y=+3
Step-by-step explanation: