in a circle of radius 25 CM ab and ac are two chords such that a b is equal to AC is equal to 60 cm find the length of the chord.

36 inches/second = yards/minute how many yards?

Prove that the sum of two consecutive exponents of the number 5 is divisible by 30.if two consecutive exponents are 5n and 5n + 1, then their sum can be written as 30.

Determine whether the quadrilateral below is a parallelogram. justify/explain your answer (this means back it up! give specific information that supports your decision. writing just "yes" or "no" will result in no credit.)