A 12-m ladder leans against a wall and reached the wall at a point 10.9m above the ground. Find the measure of the angle between the ladder and the ground.

Write two subtraction equations that are equivalent to 5 + 12 = 17.

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.

To solve the system of equations below, grace isolated the variable y in the first equation and then substituted into the second equation. what was the resulting equation? 3y=12x x^2/4+y^2/9=1