7. The table below shows the hourly temperatures, for a city in Ohio on February 10, 2012, as predicted by the weatherman at the local news station at certain times since 10 a. m..
Time
Тетр (F)
10 a. m.
1 p. m.
3 p. m.
22
11 a. m.
20
2 p. m.
25
12 p. m.
22
18
23
a. Write an equation for the curve of best fit.
b. Predict the temperature at 7:00 p. m.

Circle a has a diameter of 7 inches, a circumference of 21.98 inches, and an area of 38.465 square inches. the diameter of circle b is 6 inches, the circumference is 18.84 inches, and the area is 28.26 square inches. part a: using the formula for circumference, solve for the value of pi for each circle. (4 points) part b: use the formula for area and solve for the value of pi for each circle. (4 points)