Answer:
Prob.3
Denote r: radius of circle O
Formula for calculating AOB sector:
Area = pi*r^2*angle/360
Area = pi*r^2*45/360 = 18 pi
=> r^2 = 18*360/45 = 144
=> r = 12
For prob.4, give it a try, follow the formula I gave. Good luck !
(answer : r = 6)
Answer:
the coordinates for c is 5, -17
Step-by-step explanation:
Answer:
the answer is A. Elijah is correct.
Step-by-step explanation:
multiply both sides by -1
x = 14
Answer:
She incorrectly multiplied 15 X 1/4
Step-by-step explanation: