The hourly tides (in feet) on a recent day in Seattle, Washington, can be modeled using the sinusoidal function y=4.5cos(πx/6)+5, x =0 represents midnight. What is the water level at 3 a. m.?

Consider circle h with a 3 centimeter radius. if the length of minor arc what is the measure of zrst?

How do you solving the solution of each system using elimination?

Expresa commuter train leaves downtown sation and travels at a average speed of 55 miles per hour towards the north side sation, which is 50miles away. thirty minutes later, express commuter train #7 leaves north side and travels at a average speed of 35miles per hour towards downtown sation. at the moment the two trains pass each other, how far(in miles) is train #12 from the downtown sation and how long(in minutes) has the #12 train been traveling