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Genrish500 [490]
3 years ago
15

The number of visits to public libraries increased from 1.3 billion in 1998 to 1.5 billion in 2002. Find the average rate of cha

nge in the number of public library visits from 1998 to 2002.
Mathematics
1 answer:
9966 [12]3 years ago
4 0

Answer: The average rate of change in the number of public library visits from 1998 to 2002 = 0.05 billion per year.

Step-by-step explanation:

Given: Number of visits in 1998 = 1.3 billion

Number of visits in 2002 = 1.5 billion

The average rate of change in the number of public library visits from 1998 to 2002 = \dfrac{\text{Number of visits in 2002 - Number of visits in 1998}}{2002-1998}

=\dfrac{1.5-1.3}{4}\\\\=\dfrac{0.2}{4}\\\\= 0.05 \text{ billion per year.}

Hence, the average rate of change in the number of public library visits from 1998 to 2002 = 0.05 billion per year.

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garik1379 [7]

Given the figure of a square pyramid

The area pf the base =area of the square of side 14 in =

14\cdot14=196in^2

the area of the sides = 4 times the area of a triangle of a base of 14 in and a height of 12 in

so, the area of the sides =

4\cdot\frac{1}{2}\cdot\text{base}\cdot\text{height}=4\cdot\frac{1}{2}\cdot14\cdot12=336in^2

So, the surface area of the pyramid =

196+336=532in^2

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Estimate to the nearest 0.5 unit and classify the extrema for the graph of each function.
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f(x) = x^3+x^2-x

Finding the extreme point :

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