Ernie bought a new DVD that cost $12 before tax. Tax on the DVD is 8.25%. What is the total cost of the DVD including tax?
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Answer:
Since , the superhero makes it over the building.
Step-by-step explanation:
The height is given by the following function:
Will the superhero make it over the building?
We have to find if there is values of x for which f(x) = 612.
Solving a quadratic equation:
Given a second order polynomial expressed by the following equation:
.
This polynomial has roots such that
, given by the following formulas:
If , the polynomial has no solutions.
In this question:
We have to find
We have that . So
Since , the superhero makes it over the building.