If sin=cos
tan=?
cot=?
​

Use the empirical rule. the mean speed of a sample of vehicles along a stretch of highway is 70 miles per hour, with a standard deviation of 4 miles per hour. estimate the percent of vehicles whose speeds are between 66 miles per hour and 74 miles per hour. (assume the data set has a bell-shaped distribution.)

What tightening torque should be used for a hexagonal head screw (not split-bolt) on a 250 kcmil conductor?

In positive numbers less than 1, the zeros between the decimal point and a non-zero number are blank significant