If you notice the terms, they're
7, -21, 63, -189 and so forth.
7*-3 = -21 and -21 * -3 is 63 and so forth, meaning the "common ratio" is -3.
now, for a common ratio say "r", which is a fraction, namely less than ±1 and more than 0, or |r| < 1 , you do have a convergent sequence.
however this one notice, |-3| is 3, and that's greater than 1 clearly, therefore is divergent, meaning the summation has no finite value.
Use the rational root theorem:
=16,
=1
The dividers of
: 1,2,4,8,16
The dividers of
: 1
Therefore, check the following rational numbers: +-
is a root of the expression, so factor out x-4
Compute
to get the rest of the equation.
Cancel the common factor:
is the final answer
This just means that thefraction<span> has been reduced. For instance 4 / 6 is </span>not<span> such a </span>fraction<span>, because the top and the bottom have </span>gcf<span> = </span>2<span>, but </span>2<span> / 3 is such a </span><span>fraction</span>
Step-by-step explanation:
percentage of green marbles=
(total green marbles÷ total marbles )×100
