Answer:13.86km
Step-by-step explanation: see attachment
Write the equation in standard form. Then factor the left side of the equation. 2x^2 + 7x = 15
1 answer:
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Answer:
Step-by-step explanation:
Given
Solving (a): The cost function:
From the given parameter, it shows that the number of floor has no effect on the floors.
So, represent the floors with x.
The cost function is:
Solving (b): The slope and its interpretation
A function is represented as:
Where:
By comparing: to
So:
<em>What it means is that, no matter the number of floors, the cost remains unchanged.</em>