Answer i need done in the figure, oa = r and oc = r. the sector cob is cut from the circle with center o. the ratio of the area of the sector removed from the outer circle to the area of the sector removed from the inner circle is . r^2/r^2 r/r (r^2 - r^2)/r^2 1

What is the area of triangle abc if a = 8, b = 11, and c = 15?

Isuck at math ; ^; m a student solved this problem and said the answer is 3 feet. chase had a roll of ribbon that contained 7 7/8  feet of ribbon. he cut off one piece that was 3 5/8  feet long and another piece that was 1 1/4  feet from the roll. how much ribbon was left on the roll? is the student's answer reasonable? yes, the answer is reasonable. no, the answer is not reasonable. it should be about 2 feet. no, the answer is not reasonable. it should be about 13 feet. no, the answer is not reasonable. it should be about 4 feet.

What is the ratio of the length of an object in yards to the length of the same object in miles?