Wendy wears an activity tracker that counts her steps each day. At the end of the day the tracker showed that Wendy took 12,225 steps, but she actually took 10,900 steps. What is the percent error of the activity tracker, to the nearest tenth? ​

1; 35 is the ratio

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hello from mrbilldoesmath!

answer:   x^2 + y^2 = 1024

discussion:

the equation of a circle with center (h,k) and radius "r" is

(x-h)^2 + (y-k)^2 = r^2.

in our case

(x-0)^2 + (y-0) ^2 = 32^2 = 1024

you,

mrb