So perimeter is adding all sides
In this picture, you have all sides, so add them up!
(2a-3)+(3a+1)+(2a) = P
So this expression shows that we're adding all sides that gives us the P, or perimeter :)
percentage - 25%
probability - 0.25
we know,
total amount of students in class = 20
total boys = 10
total girls = 10
no of girls who wear glasses = 10/2 = 5
probability of choosing a girl with glasses is =
number of girls wearing glasses/total number of students in the class = 5/20
thus, percentage of selecting a girl wearing glasses will be
= 5/20 × 100
= 5 × 5
25%
therefore,
probability will be 0.25
happy to
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answer: b
step-by-step explanation:
x2 = 16
x can not be a negative number because 16 is positive
the only answer would be positive 8