Mathematics: What is the circumference of a circle with a radius of 2.5 meters? A. 15.7 meters B. 19.63 meters C. 78.5 meters D. 81 meters

What is the circumference of a circle with a

Ответ:

Teephat

23.01.2022

Mathematics

A.15.7 meters

Step-by-step explanation:

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Ответ:

tremainewoodley3030

08.05.2022

Mathematics

$y=\frac{1}{2} x-40$

Step-by-step explanation:

Slope interccept form: y=mx+b

(m= the slope, b= the y-intercept (the y value when x=0))

for every 2 x-values the y-value increases by 1. Slope is written as $\frac{rise}{run}$ or $\frac{y_{1}-y_{2} }{x_{1}-x_{2}}$ which is the change in the y-values divided by the change in x-values. You can find the slope by plugging in points.

$\frac{(-42)-(-41)}{(-2)-(-4)} =\frac{1}{2\\}$ so now you have $y=\frac{1}{2}x+b$

b is whatever the value of y is when x=0. According to the table when x=0 then y=-40. The final equation is $y=\frac{1}{2} x-40$

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What is the circumference of a circle with a radius of 2.5 meters?

A.
15.7 meters

B.
19.63 meters

C.
78.5 meters

D.
81 meters

Ответ:

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