URGENT PLEASE HELP Consider this equation.

cos(0)= -2√5/5

If 0 is an angle in quadrant II, what is the value of sin(0)?

Zach spent 2/3 hour reading on friday a 11/3 hlurs reading on saturday. how much more time did he read on saturday tha on friday

The average daily maximum temperature for laura’s hometown can be modeled by the function f(x)=4.5sin(πx/6)+11.8 , where f(x) is the temperature in °c and x is the month. x = 0 corresponds to january.what is the average daily maximum temperature in may? round to the nearest tenth of a degree if needed.use 3.14 for π .

Plz : denver is about 5,200 feet above sea level. which number line best represents this integer?