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Artemon [7]
3 years ago
12

The size of a television is usually indicated by the length of the screens diagonal if a person buys a 20 inch television set th

at is 12 inches tall how wide is the television
Mathematics
1 answer:
ipn [44]3 years ago
8 0

diagonal = sqrt(a^2 +b^2)


20 = sqrt(12^2 +b^2)

20= sqrt(144+b^2)

20^2 = 144 + b^2

400 = 144 + b^2

256 = b^2

b = sqrt(256) = 16

 it is 16 inches wide


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The average rate of change of the function, over the given interval is 2.

This question is incomplete, the complete question is:

What is the average rate of change of f(x) = 2x+10, if this function interval are x = -3 to x = 0.

<h3>What is the average rate of change over the interval?</h3>

The average rate of change of f(x) over the interval [a,b] is expressed as;

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Given that;

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We substitute our values into the expression above.

\frac{f(b)-f(a)}{b-a}\\\\\frac{f(0)-f(-3)}{0-(-3)}\\\\\frac{[2(0)+10]-[2(-3)+10]}{0-(-3)}\\\\\frac{[10]-[-6+10]}{3}\\\\\frac{[10]-[4]}{3}=\frac{6}{3}=2

Therefore, the average rate of change of the function, over the given interval is 2.

Learn more about average rate of change: brainly.com/question/23715190

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