hope this help Answer:( x - 3i√2)(x + 3i√2)
solve x² + 18 = 0
x² = - 18 ⇒ x = ±√- 18 = ±3i√2
factors are ( x - (3i√2))(x - (-3i√2))
x² + 18 = (x - 3i√2)(x + 3i√2
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
Noting that i² = - 1
Given
(7 - 3i)(8 + 4i) ← expand factors using FOIL
= 56 + 28i - 24i - 12i²
= 56 + 4i - 12(- 1)
= 56 + 4i + 12
= 68 + 4i → A
Answer:
Mutually exclusive
Step-by-step explanation:
Just read the table!
<span>From "the probability that a randomly chosen tree": </span>
<span> ⇒ How many Trees? </span>
<span>Write the denominator. </span>
<span>From "will be a California redwood tree taller than 300 ft"" </span>
<span> ⇒ How many California redwood tree taller than 300 ft? </span>
<span>Write the numerator. </span>
<span>Done.
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