Q: A jeweler buys a ring for $85 he sells it for 135% increase what is the retail of the ring
A: 199.75 just think about the increase of 35% and add 1
in log minus means divide
log 6 - log 3 = log (6÷3)
log 6 - log 3 = log 2
The exact form is x= -3/14
Answer:
You can use Pythagoras theorem to calculate x:
12² + 14² = x²
144 + 196 = x²
x² = 340
x = √340 ≈ 18,44
Remember that the area of a rectangle is the length of the rectangle multiplied by the width of the rectangle.
In this case, we could say (where
is the area of the rectangle):

Substituting the values the problem gave us for
and
, we can find the formula for
in terms of
, which is:

The formula for the area of the rectangle would be A(x) = 10x³ - 20x² + 65x.