11 is what percent of 300?

The average human heart beats 72 beats per minute. how many times does it beat in 15 seconds?

Which math sentence can be used to determine if the triangle is a right triangle?

Proceed as in example 3 in section 6.1 to rewrite the given expression using a single power series whose general term involves xk. ∞ n(n − 1)cnxn − 2 n = 2 − 4 ∞ ncnxn n = 1 + ∞ cnxn n = 0