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Triangle DEF is an isosceles triangle.
DE = EF
m⦟D = 26°
What is m⦟F?
A. 26°
B. 64°
C. 77°
D. 128°
Triangle DEF is an isosceles triangle.
DE = EF
m⦟D = 26°
What is m⦟F?
A. 26°
B. 64°
C. 77°
D. 128°
1 answer:
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Answer:
The number of children are 4 out of which 3 are girls
Step-by-step explanation:
Data provided in the question:
P(Two randomly selected children are girls) =
now,
let the number of children be 'n'
the number of girls be 'x'
thus,
P(Two randomly selected children are girls) = =
also,
=
thus,
=
or
=
or
2x(x-1) = n(n-1)
now
for x = 3 and n = 4
i.e
2(3)(3-1) = 4(4-1)
12 = 12
hence, the relation is justified
therefore,
The number of children are 4 out of which 3 are girls