Answer:
x=-1
Step-by-step explanation:
x3+x2=-9x-9
add 9x +9 on each side
x^3+x^2+9x+9=-9x-9+9x+9
x^3+x^2+9x+9=0
factor out an x^2 from the left 2 terms and a 9 from the right 2 terms
x^2 (x+1) +9(x+1) = 0
factor out x+1
(x+1) (x^2+9) = 0
using the zero product property
x+1 =0 x^+9 =0
x=-1 x^2 =-9
x=-1 sqrt(x^2) = sqrt(-9)
x=-1 x = ±3i
Answer:
600 volts
Step-by-step explanation:
Given =
A = 12 ampere
V = 480 volts
A2 = 15 ampere
Solution =
R = V/I
= 480 / 12
= 40 ohms
R = V / I
V = R x I
= 40 x 15
= 600 volts
Answer:
I can't see the number line but I assume the fraction would be 6/6
Answer:
sorry im not so sure about the answer
Step-by-step explanation:
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