The number of carbon atoms in a fossil is given by the function $y = 5100(0.95)^{x}$ , where x represents the number of years since being discovered. What is the percent of change per year? Explain how you arrived at your answer.

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Ответ:

onlyceleste2430

05.04.2022

Mathematics

The correct are is 5.5 cm².

Step-by-step explanation:

First of all, Carlos calciulated the are of the rectangle correctly, only the are unit is wrong, it should be 3 cm².

He made a mistake calculating the area of a the triangle: The area of a triangle can be calculated by multiplying the base by the height by $\frac{1}{2}$ .

(Comment if you want a deeper explanation on where this comes from)

He mistakenly takes 4 cm for the height, but if you look carefully the height of the triangle in this case is 4 cm - 1.5 cm = 2.5 cm.

That gives $\frac{1}{2} * 2 cm * 2.5 cm = 2.5 cm^2$ for the area of the triangle.

Adding those two together gets you a total area of 5.5 cm².

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The number of carbon atoms in a fossil is given by the function , where x represents the number of years since being discovered. What is the percent of change per year? Explain how you arrived at your answer.