It's A.............................
the first part isn't 90, it's 180.
the whole circle is 360, half of 360 is 180
an acute angle is any angle less than 90 degrees.
60i
if you go to mode on your calculator then Chang it from "real" to "a+bi" you can solve for unreal numbers. if you press "2nd" then "." it makes an "i"
Answer: 3/5
Step-by-step explanation: 3/5 is equal to .6 so if is greater than .5625
The answer would be x= 4,-4