Question

One approach is to express 8x2y so that the numerator and denominator are expressed with the same base. Since 2 and 8 are both powers of 2, substituting 23 for 8 in the numerator of 8x2y gives (23)x2y which can be rewritten 23x2y Since the numerator and denominator of have a common base, this expression can be rewritten as 2(3x−y). In the question, it states that 3x−y=12, so one can substitute 12 for the exponent, 3x−y, which means that 8x2y=212​

Answer 1

Answer:

Sublimation is the conversion of a substance from the solid to the gaseous state without its becoming liquid. An example of sublimation in the world is the vaporization of frozen carbon dioxide (dry ice) at ordinary atmospheric pressure and temperature