Option 2 8-12i is correct.
Step-by-step explanation:
The conjugate of the complex number is obtained by changing the sign of the imaginary part.
In complex number 8+12i
8 is the real part and 12i is the imaginary part
The conjugate of 8+12i is 8-12i
So, Option 2 8-12i is correct.
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Keywords: Complex numbers, conjugate
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Answer: transpiration
Step-by-step explanation:
Answer:
7/40
Step-by-step explanation:
(70_56)/80
= 14/80
divided by 2
=7/40
Answer:
The graph in the attached figure
Step-by-step explanation:
we have

Multiply by -1 both sides ( remember that the sign of the inequality change)

The solution is the interval ----> (-∞,-4]
All real numbers less than or equal to -4
In a number line the solution is the shaded area at left of x=-4 (close circle)
see the attached figure
See the attached picture: