That's for the equation I got from the picture
Equation: y=-5x+100, where x is the number of hours and y is the battery percentage
The slope is -5, meaning she loses 5% of battery per hour
:)
Acute would be less than 90 degrees, obtuse is greater than 90 degrees and right is 90 degrees
C=10pi
C=2(r)pi so r=5
A=pi(r)^2
so A=pi(5)^2
A=25pi
