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:
the last box represents a set of data
Answer:
1
Step-by-step explanation:
Answer:
3,5
Step-by-step explanation:
2+3/5+1 1/4=3.85
3.85 pounds is the total weight.