Which function represents exponential decay? fx) = 1/2(2)^x
f(x) = 3/4(-1/5)^x
f(x) = 3(7/2)^x
fx) = 2(2/3)^x

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.

Find the center and the radius of the circle with the equation: x^2-2x+y^2+4y+1=0?

Oliver read for 450 minutes this month his goal was to read for 10% more minutes next month if all of her medicine go how many minutes will you read all during the next two months