Answer:
-7x-56
Step-by-step explanation:
Answer. C + .07c
Step-by-step explanation:
C is retail. Sales tax of 7% (.07) is added to that retail cost to reach the total sales price
Answer:
The positive value of
will result in exactly one real root is approximately 0.028.
Step-by-step explanation:
Let
, roots are those values of
so that
. That is:
(1)
Roots are determined analytically by the Quadratic Formula:


The smaller root is
, and the larger root is
.
has one real root when
. Then, we solve the discriminant for
:


The positive value of
will result in exactly one real root is approximately 0.028.