Answer:
D
Step-by-step explanation:
Δ DCA and Δ ABE are similar, thus the ratios of corresponding sides are equal, that is
= , substitute values
= ( cross- multiply )
10(x + 8) = 144 ( divide both sides by 10 )
x + 8 = 14.4 ( subtract 8 from both sides )
x = 6.4 → D
21x²
hopefully A is a typo
We are given that
R=150 ohm
L=5 H
V(t)=10 V
I(0)=0
Substitute t=0
Substitute the values
multiplication? then...
2.7 * (7.8) = 21.06