What is the area of a circle with a diameter of 12.6 in.? use 3.14 for pi and round your final answer to the nearest hundredth

7x+8y=-18, 4x-9y=-3 solve the system of equations

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.

Given that ot =5, xt=12, and ox= 13 is xy tangent to circle o at t? explain.