I only have the answer for 3 and i believe it is 20,090
A₆ =12
a₇ = ?? = x
a₈ 27
In this case x is the geometric mean & as per the formula
geometric mean of 2 numbers =√(a₆ * a₈) = √(12*27)
& x=18.
Proof:
Find the common ratio between a₇ & a₆ ==> = ( x) / 12
now find the common ration between a₈ & a₇ ===> =27 / (x)
x/12 = 27/x ===> x² = 12*27 ==> x² = 324 & x =√324 = 18
Answer:
the answer is a
Step-by-step explanation:
2x +2(x-4)=87
2x+2x-8=87
4x-8=87
4x=95
x=95/4
Answer: the picture has no answer it's invalid but I will try:
X is a 90 degree angle other than that I can't do anything
Step-by-step explanation:
Answer:
4/11
Step-by-step explanation:
I got the question wrong and it told me the right answer.
