Step-by-step explanation:
The displacement of a particle d (in km) as a function of time t (in hours) is given by :

Displacement at t = 4 hours,

Velocity of particle is given by :

Velocity at t = 4 hours,

Acceleration of the particle is given by :

At t = 4 hours,

Therefore, the displacement, velocity and acceleration at t = 4 hours is 205 km, 136 km/h and 58 km/h² respectively.
Answer:
x = 4
Step-by-step explanation:
A = hb/2
4 = 2(x)/2
4 = x
Answer:
-2 -4 -6 -8
Step-by-step explanation:
I got the answer off of khan academy
Answer:
D. -2 and 6
Step-by-step explanation:
Use the quadratic formula to put either -2 or 6 in and get it to equal 0.
Answer:
<u>20%</u>
Step-by-step explanation:
520,000/650,000 = 0.8
Sold for 80% of original price
Lost percent = 100% - 80%
20%