Use distributive property a(b + c) = ab + ac.
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D is halfway between A and B
so the coordinates of D are (2,2)
E is halfway between A and C so the coordinates of E are (-1,1)
now you need to find the gradient/slope of DE and BC using the formula:
SUB IN COORDINATES OF D AND E
therefore the gradient of DE is 1/3.
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therefore the gradient of BC is -2/-6 which simplifies to 1/3.
<h3>therefore, BC and DE are parallel as they both have a gradient/slope of 1/3 and parallel lines have the same gradient</h3>
Answer:
The right solution is "0.5545".
Step-by-step explanation:
According to the question,
The probability of having 6 or 7 males will be:
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