In equilateral δabc, ad, be, and cf are medians. if fo = 4, then ae = a) 4 b) 4 3 c) 8 d) 12

Firstly, we need to draw triangle

we know that

O is a centroid

and centroid divides median into 2:1

so,

we have FO=4

so, we can plug it

now, we can find CF

CF=OC+FO

CF=8+4

CF=12

now, we can see triangle ACF is a right angled triangle

so, we can use pythagoras theorem

now, we can solve for x

Since, it is equilateral triangle

so,

we know that

E is a mid-point

so,

now, we can plug values

................Answer

blue marble is 15 times out of 50 = 15/50 reduces to 3/10

landing on tails is 24 out of 50 = 24/50 reduces to 12/25

to find the probability of both multiply together:

3/10 x 12/25 = 3 x 12 / 10 x 25 = 36/250

if you multiplied the numerator and denominator by 10 you get 360/2500.

the answer is 360/2500