common ratio = a4/a3 = a3/a2
8/a3 = a3/18
(a3)^2 = 8 * 18
(a3)^2 = 144
a3 = 12 or a3 = -12
common ratio = 8/12 or common ratio = 8/(-12)
common ratio = 2/3 or common ratio = -2/3
Answer: 12 or -12
Answer:
Pythagorian theorem:
7^2=13+b^2 -> b^2=49-13=36
The square root of 36 is obviously 6.
So, the other leg has a length of 6 inches
Step-by-step explanation:
just divide 20 by coefficient of x
x < 20/2
x < 10
Answer:
a study of the popularity of a particular music genre, with a small standard deviation about the mean
a study with a significantly larger than expected standard deviation about the sample mean
Step-by-step explanation:
Answer:
The opción b
Step-by-step explanation:
the profit is defined by
In this case 
is the profit to sell 100 television and is calculated
