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!! :))
Suppose the population of a certain city is 3339 thousand. It is expected to decrease to 2694 thousand in 50 years. Find the per
1 answer:
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Answer:
y = - 1
Step-by-step explanation:
y - y1 = m (x - x1)
y + 5 = (x + 12)
y + 5 = x +
y + 5 = x + 4
y = x - 1
Hope this was helpful :)