Answer:
3i
Step-by-step explanation:
Square root -9
√(-9) = (3i)(3i)
Note that the "imaginary number" is a non-existent number. Note that in the rules of imaginary numbers: i * i = i² = -1
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I think the answer must be A.
=>
=> -1 × 7²
=> -7²
=> -49
Hoped this helped.
Answer:D
D
The answer is B ( X>6 )
2x+4= 16
2x = 16 - 4
2x = 12
x = 12/2
x= 6
x>6