Answer:
B) 20 + 15i
Step-by-step explanation:
So first you need to foil the equation (a + bi)(c + di) = ac +adi +bic +bidi. then you need to combine like terms. Remember that i^2 = 1 and i = i.
Then write your final answer in the terms a + bi
How is Solving for speed similar to solving for time? They both require that two numbers be added. They both require that two nu
2 answers:
You might be interested in
Answer:
v=206ft/s , a=120ft/s
Step-by-step explanation:
We are given the equation of displacement
- velocity = ds/dt
upon differentiating the given equation
ds/dt =
upon substituting t = 3
v = 206ft/s
- Acceleration
a= dv/dt
upon differentiating
dv/dt = 36t + 12
put t= 3
a=120ft/s