Answer:
1) x= 3i, x= - 3i
2) x= +i
, x = - i
Step-by-step explanation:
1) x^2+9=0
(x+3i)(x-3i)=0
x= 3i, x=-3i
2) x^2-4=-11
x^2=-7
x= ±i
x= +i, x = - i
hope this helps!! :))
Answer:
450 days
Step-by-step explanation:
4500/10 = 450 days
Answer:
The leverage of an observation is determined by how far the values of the independent variables are from their means.
Answer:
1, 2 and 7
Step-by-step explanation:
they look the same, have a good day!!
Answer:
I can't see the options but the answer is -1,024
Step-by-step explanation:
-4^5= -4 × (-4) × (-4) × (-4) × (-4)= -1,024
