Answer:
Step-by-step explanation:
Given that,
The frequency of x-rays, 
We need to find the wavelength for x-rays. The relation between wavelength, frequency and speed of light is given by :
So, the wavelength for x-rays is 
.
1. There
are 10, 000 combinations, you have 10 choices for the four digit and there are
10 x 10 x 10 x 10 which is 4-digit combination from 1-9. This is called combinations;
the calculation comes out to 10^4.
Add -46 and -46 to the final answer
Measurement is used in many careers, but how it will be used depends on what career you want. For example, if I were to become an architect, I will have to use measurement to ensure that a building I'm designing does not collapse due to inconsistencies. On the other hand, if I were to become an animal caretaker, I will have to measure the food each animal receives to ensure that they get a healthy diet. There are many examples, so I can not help with every single one of them.
