Answer:
2, 6, 18, 54, 162
Step-by-step explanation:
In a geometric sequence, terms that are 2 terms apart (2nd & 4th, for example) have a ratio that is the 2nd power of the common ratio. Since 54/6 = 9 = 3², the common ratio is 3.
The first term will be the 2nd term divided by that ratio; the 5th term will be the 4th term multiplied by that ratio. You can figure the 3rd term any of several ways (and they should all give the same value): multiply the 2nd term, divide the 3rd term, or find the geometric mean of the 2nd & 4th terms: √(6·54) = 18.
Answer:
top right
Step-by-step explanation:
Answer:
I dont see any picture "below"
Step-by-step explanation:
Answer:
150, 150, 270
Step-by-step explanation:
let the congruent sides be x, then
the third side is 2x - 30 ( 30 shorter than twice the congruent sides )
The perimeter = 570, hence
x + x + 2x - 30 = 570
4x - 30 = 570 ( add 30 to both sides )
4x = 600 ( divide both sides by 4 )
x = 150
2x - 30 = (2 × 150) - 30 = 300 - 30 = 270
The length of the 3 sides are 150, 150 and 270