The perimeter of a rectangular painting is 340cm. If the width of the painting is 74cm, what is its length?
2 answers:
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Answer:
This situation represents [a.) exponential decay
The rate of growth or decay, r, is equal to c.) 0.2
So the value of the computer each year is g.) 80% of the value in the previous year.
It will take [i.) 3 years for the value of the computer to reach $512.
Step-by-step explanation:
Since the value depreciates each year, it represents exponential decay.
The rate of growth or decay, r, is equal to
Depreciates 20%, so r = 0.2.
So the value of the computer each year is ... of the value in the previous year,
Depreciates 20%, so it is 100% - 20% = 80% of the value in the previous year.
It will take x years for the value of the computer to reach $512.
The value of the computer after x years is given by:
In which V(0) is the initial value and r is the decay rate. So
We want to find x for which V(x) = 512. So
Applying log to both sides:
So it will take 3 years.
Answer:
Step-by-step explanation:
The angle formed by and the angle marked as
are co-interior angles and therefore must be supplementary (add up to 180 degrees).
Therefore, we have: