The Student Council is making six right triangular pennants to promote school spirit. Each right triangle is 9 inches high and 2
2 answers:
Answer:
Total area of six pennant is 16 feet²
Step-by-step explanation:
The student is making six right triangular pennants to promote school spirit.
Each right triangle is 9 inches high and 2 feet long.
we will convert the height of the triangle from inches to feet.
12 inches = 1 feet
9 inches = feet
Now we know each triangle is 1.33 feet high and 2 feet long.
Area of the triangular pennant = 1.33×2 = 2.67 feet²
Area of 6 pennant = 2.67×6 = 16 feet²
Therefore, area of six pennant will be 16 feet².
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Answer:
0.3898 = 38.98% probability that there will be 4 failures
Step-by-step explanation:
A sequence of Bernoulli trials forms the binomial probability distribution.
Binomial probability distribution
The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.
In which is the number of different combinations of x objects from a set of n elements, given by the following formula.
And p is the probability of X happening.
Let the probability of success on a Bernoulli trial be 0.26.
This means that
a. In five Bernoulli trials, what is the probability that there will be 4 failures?
Five trials means that
4 failures, so 1 success, and we have to find P(X = 1).
0.3898 = 38.98% probability that there will be 4 failures