Answer:
?
.
Step-by-step explanation:
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Answer:
69.08
Step-by-step explanation:
circumference is 2πr which is 3.14 x 2 x 11
The temperature decreased by 5 degrees per hour, as -25 / 5 is -5.

is in quadrant I, so

, which means

, so

belongs to the same quadrant.
Now,

Since

, it follows that

Since

belongs to the first quadrant, you take the positive root (

for

in quadrant I). Then


is also positive for

in quadrant I, so you take the positive root again. You're left with