Answer:
4z-(3z) z
Step-by-step explanation:
I hope that helps
Answer: 2
Step-by-step explanation:
When x=-9, y=2. So, f(-9)=2.
Answer:
y(3y - 4)
Step-by-step explanation:

Both have y.
Factor y out of 

We have been that frequency (y) varies inversely with wavelength (x).
We know that two inversely proportional quantities are in form
, where a is inversely proportional to b and k is constant of variation.
Our required equation would be
.
To find frequency of blue light, we will substitute
and
in our equation as:


Therefore, the frequency of blue light is 764.