PLEASE HELP WILL GIVE BRAINLIEST!!!!!! In a survey, 250 adults and children were asked whether they know how to swim.
2 answers:
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Answer:
6). unknown side is 6.23m
7). angle is 26.58 degrees
Step-by-step explanation:
you must use the Pythagoras theorem formula to find the unknown side if you have only two sides
Answer:
(a)
(b)
i.
ii.
iii.
Step-by-step explanation:
Given
Solving (a): List all possible elements using set-roster notation.
The possible elements are:
And the number of elements are:
Solving (bi) Exactly 1 girl
From the list of possible elements, we have:
And the number of the list is;
The probability is calculated as;
Solving (bi) At least 2 are girls
From the list of possible elements, we have:
And the number of the list is;
The probability is calculated as;
Solving (biii) No girl
From the list of possible elements, we have:
And the number of the list is;
The probability is calculated as;