A city park is 0.85 mile long and 0.7 mile wide. The city wants to put in new plants and grass that need less watering. NEED HELP ASAP

What are correct trigonometric ratios that could be used to determine the length of ln

1. what is the formula for finding the vertical distance between two points on a coordinate plane?

Rockwell hardness of pins of a certain type is known to have a mean value of 50 and a standard deviation of 1.1. (round your answers to four decimal places.) (a) if the distribution is normal, what is the probability that the sample mean hardness for a random sample of 8 pins is at least 51?