Answer:
Step-by-step explanation:
Let
h-------> the minimum height for riding on the Super Screaming Spinner at the theme park
we know that
the height may not be less than 
so
-------> inequality that represent the situation
100 degrees - all angle measurements in a triangle will add up to 180 degrees (45+55 = 100, 180-100 = 80)
The probability of getting exactly zero tails is 1/8.
Step-by-step explanation:
When a fair coin is tossed three time, the set of equally likely outcomes is:
S= {HHH,HHT, HTH, THH, HTT, THT, TTH, TTT}
n(S)=8
Let A be the event that there are exactly zero tails which means there are all heads
Then
A= {HHH}
n(A)=1

The probability of getting exactly zero tails is 1/8.
Keywords: Probability, Equally likely events
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Answer:
A
Step-by-step explanation: