X² - 4x - 77 = 0
( x + 7) ( x - 11)
x + 7 = 0
x - 11 = 0
x = -7
x = 11
Assuming the speed is in miles per hour, simply divide the total distance by time.
515.97/6.5
The answer is 79.38 miles per hour
7
1.4x10^
Hope this helps!!!!!!!!!
Answer:
-4z+4
Step-by-step explanation:
next time uses cymath