The lemght could be 15 because a triangle has two long sides and one short one and the two are equivalent
Answer:
100
Step-by-step explanation:
1+1=2+5=7+3=10
Answer:
85/4 = 21 ,remainder =1
so
21 1/4
Step-by-step explanation:

The probability of drawing a red marble on the first attempt is

After the first marble is drawn, and we know it to be red, we're drawing the next marble from a pool with one less marble than before (i.e. conditioning on the event

). So

And so