Standing on the gallery of a lighthouse (the deck at the top of a lighthouse), a person spots a ship at an angle of depression of 20 degrees. The lighthouse is 28 meters tall and sits on a cliff 45 meters tall as measured from sea level. What is the horizontal distance between the lighthouse and the ship to the nearest meter?

Find dy/dx using implicit differentiation ln(20+e^xy)=y

Acircle has a circumference of 28.36 units what is the diameter of the circle

Now max recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a) the median of max’s data is 250 b) more than half of the data points max recorded were 177 centimeters. c) a data point chosen at random is as likely to be above the mean as it is to be below the mean. d) every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.