What ratio defines sine in a right triangle?
The opposite side divided by the hypotenuse.
What is the Bragg relation of intensity of light to concentration of analyte?
A=abc where A is the measured absorbance level of light at the analytical wavelength; a is the absorptivity constant; b is the light path or cell thickness, usually in cm; c is the concentration.
If x squared equals sixteen, what is x?
The variable x is equal to four.