Answer:c
Step-by-step explanation:
Answer:
= 6/25 Is the correct answer.
The answer is probably 50 ok
Answer:1 computer : 8 students
Step-by-step explanation:
if there are 9 computers it would originally be 9 : 72 but that can be reduced since 9 is a factor of 72.
Answer:
Step-by-step explanation:
if i can draw, then i can explain better
distance between centers=r+3r=4r
we have to find the side of a right angled triangle by pythagoras theorem
given hypotenuse=4r
and one side=3r-r=2r

this is the distance if they touch.
but if they are r distance apart
then distance between centers=r+r+3r=5r
so hypotenuse=5r
length of tangent
