the height of water at the mouth of a river varies during the tide cycle. the time in hours since midnight and the height in feet are related by the equation: h=15+8cos(2π(t-3)/12 what is the maximum water height?

Julia chooses a card at random from her set of cards. what is the probability that the card is labeled cat or hamster?

As part of an annual fundraiser to raise money for diabetes research, diane joined a bikeathon. the track she biked on was 1,920 yards long. diane biked 38.5 laps. her sponsors agreed to donate an amount of money for each mile she biked. how many miles did she bike? first fill in the blanks on the left side using the ratios shown. then write your answer. given ratios: 5280ft / 1 mi , 1 mi /5280 ft , 1,920 yards / 1 lap , 1 lap / 1,920 yards , 3 ft / 1 yard , 1 yard / 3 ft. blanks: 38.5 laps / 1 yard x (blank) x (blank) x (blank) = (blank) miles i'm really confused on how to do this, and the explanations aren't exactly . if you could walk me through how to do this, it would be greatly appreciated.

If a || b and b | y, then ? a) x || y. b) x | a. c) a | y. d) a || y.