To find the average change per hour, divide the total change by the total time:
-9.9 inches / 2.25 hours = -4.4 inches per hour.
Answer:
C
Step-by-step explanation:
80/20 = 4 hours taken by Davie
90 mins = 1.5 hours
Horatio has 4-1.5 = 2.5 hours
Speed: 80/2.5 = 32 miles/hour
Your answer should be the last one!!
<span>y(1) = 0
y'(1) = e
y" = c1ex + c2e-x
y' = c1ex - c2e-x
for solving c1, 0 = c1e1 + c2e-1
this implies that c1 = - (c2/e2) and
to solve c2
e1 = (-c2e-2)e1 - c2e-1
e1 = (-2c2e-1)
c2= - (e1/2e-1) = - (e2/2)
c1 = - (c2/e2) = (e2/2e2)
Therefore y =(e2/2e2)ex - (e2/2)e-x</span>