Alex is ordering his girlfriend a bouquet of flowers for their anniversary. roses cost $5 each and carnations cost $2 each. He w
1 answer:
You might be interested in
If we take both sides of the equation and <em>multiply either expression by 3</em>, the equality becomes
Multiplication of both sides of an equality by the same number keeps the equality true, and we call this property the multiplication property of equality.
I'm guessing S^20 is actually referring to the 20th partial sum 
, with
in the arithmetic case, and
in the geometric case.
(a) Combining like terms, we have
and invoking the formula
we end up with
(b) Multiply by 1.1, then subtract this from :
in the arithmetic case, and
in the geometric case.
(a) Combining like terms, we have
and invoking the formula
we end up with
(b) Multiply