Geometric mean= √ ( 1/2 X 2/5 )
= 1/√5
Answer: 12x^3 y^6
Step-by-step explanation: Have a nice day! -Lily ^-^
I'm pretty sure both B and C equal 12 as well
Since the triangle equals 180 and the angels are all congruent
the cost of one soccer ball is 150/6 or 25 dollars.
The sequence is geometric, so

for some constant r. From this rule, it follows that

and we can determine the first term to be

Now, by substitution we have

and so on down to (D)

(notice how the exponent on r and the subscript on a add up to n)