Answer:
B. light
Step-by-step explanation:
When specific frequencies of light are absorbed by a material, it forms an absorption spectrum.
You need to make 2 equations one for the real part of the complex number and another from the imaginary part . So for Q 9:-
2x = 4 so x = 2
and x + y = -5
so 2 + y = -5
y = -7
so the answer is x = 2 and y = -7
10.
(x - iy) + (y + xi) = 1 - 5i
x + y + xi - yi = 1 - 5i
x + y = 1
x - y = -5
adding:-
2x = -4
so x = -2
-2 - y = -5
y = 5-2 = 3
So x = -2 and y = 3
Answer:
x=5
Step-by-step explanation:
First you need to combine the like terms. Add the two x-terms together and you get 8x, then subtract 8 from both sides of the equation. You now have 8x=40. Just divide each side by 8 and you end up with x=5.
0.80>0.79 Option A is the correct answer
Answer: II
Step-by-step explanation:
Occupational injuries and illnesses, which cost American employers over $1 billion a week in workers’ compensation costs