Indicate the method you would use to prove the two δ's . if no method applies, enter "none".

a. hl
b. la
c. ll
d. ha
e. none

Passengers usually start to board their flights 1 hour before the scheduled take off time. the gate will be closed 15 minutes before the takeoff time. jack’s plane is scheduled to take off at 12: 05 a.m. if he arrives at the gate at 11: 45 p.m., can he board the flight?

How many zeros does the function f(x)=4x3-x2+1 have

I'm confused on this could anyone me and show me what i need to do to solve it.