im pretty sure its .8%
because you move the decimal forward two spaces .
0.008 = 0.008 * 100 as a percentage
= 0.8 %.
Multiplying by 100 moves the decimal point 2 places to the right.
9.008 * 1000 = 9008
9008 ÷1000 = 9
Series: 0.8 + 0.08 + 0.008 + 0.0008 + ...
Determine a rational number to represent the series
To do this, we simply get the sum to infinity of the series;
This is done as follows;
Where a represent the first term
r represent the common ratio
Substitute these values in the above formula
Multiply the numerator and denominator by 10
The number is
A, B, D
A geometric sequence has terms that are multiplied or divided by the same factor each time, as opposed to an arithmetic, which is addition or subtraction.
So if we divide the terms by each other, we can tell.
-9/-2.7 = -30/-9 = -100/-3, so A is geometric.
2.5/-1 = -6.25/2.5 = 15.625/-6.25, so B is geometric.
9.2/9.1 ≠ 9.3/9.2 ! C is an arithmetic sequence.
.8/8 = .08/.8 = .008/.08, so D is geometric.
-4/4 ≠ -12/-4 ! E is an arithmetic sequence.
a,b and c
1st and 2nd both are being multiplied and the fourth is constant division