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Mice21 [21]
2 years ago
13

A pizza has a diameter of 16 inches. What is the best approximation for the circumference of the pizza? Use 3. 14 to approximate

pi. 12. 6 inches 25. 1 inches 50. 2 inches 100. 5 inches.
Mathematics
1 answer:
kipiarov [429]2 years ago
6 0

The best approximation for the circumference of the pizza is 50.2 inches. Then the correct option is C.

<h3>What is a circle?</h3>

It is a locus of a point drawn at an equidistant from the center. The distance from the center to the circumference is called the radius of the circle.

A pizza has a diameter (D) of 16 inches. Then the radius (R) of the pizza will be

\rm R = \dfrac{D}{2}\\\\R = \dfrac{16}{2}\\\\R = 8

The best approximation for the circumference of the pizza will be

\rm Circumference = 2 \pi R\\\\Circumference =  2 *3.14 * 8\\\\Circumference =  50.24 \approx 50.2

The best approximation for the circumference of the pizza is 50.2 inches. Then the correct option is C.

More about the circle link is given below.

brainly.com/question/11833983

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bixtya [17]

Using an exponential function, it is found that f(5.5) = 19.8.

<h3>What is an exponential function?</h3>

An exponential function is a function in which the growth rate is a percentage, modeled by:

y = ab^x

In which:

  • a is the initial value.
  • b is the rate of change.

f(3.5) = 25 means that:

ab^{3.5} = 25

a = \frac{25}{b^{3.5}}

f(8.5) = 14 means that:

ab^{8.5} = 14

Hence:

\frac{25}{b^{3.5}} \times b^{8.5} = 14

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b = \sqrt[5]{\frac{14}{25}}

b = 0.89

a = \frac{25}{0.89^{3.5}} = 37.59

Hence, the function is given by:

y = 37.59(0.89)^x

Then, when x = 5.5:

f(5.5) = 37.59(0.89)^{5.5} = 19.8

More can be learned about exponential functions at brainly.com/question/25537936

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