Decide whether the given ordered pair is a solution to the system of equations. y=2x-6
x+y=8
(4,2)

Solve for x -2.3(r - 1.2 ) = -9.66 enter you answer as decimal.

The lengths of nails produced in a factory are normally distributed with a mean of 4.91 centimeters and a standard deviation of 0.05 centimeters. find the two lengths that separate the top 4% and the bottom 4%. these lengths could serve as limits used to identify which nails should be rejected. round your answer to the nearest hundredth, if necessary.

How much dextrose 70% must be mixed with dextrose 5% to prepare 1,000 ml of dextrose 20%?