3. For each, find the discriminant (62 - 4ac ) ONLY. Show work! Then state how many and what type of solutions you would get. (3 points each)
A)X? +6x-14 = 0
B) 5x² +6x+1=0
Discriminant:
Discriminant:
How many solutions?
How many solutions?
What type of solutions?
What type of solutions?

Sound travels about 750 miles per hour. a) suppose it takes about 1.5 seconds to hear the echo. how far away is the canyon wall, in feet? for this i got 825 ft b) suppose you stand 1,925 feet from the canyon wall and sound the horn. how long will it take to hear the echo? (i'm stuck on this)