Two observers on the ground 1.5 mi apart see a helicopter in the air directly between them. The angles of elevation from the observers to the helicopter are 30° and 35°.
Find the altitude of the helicopter.

Franco wants to double the volume of the cone. what should he do?

Atextile fiber manufacturer is investigating a new drapery yarn, which the company claims has a mean thread elongation of 12 kilograms with a standard deviation of 0.5 kilograms. the company wishes to test the hypothesis upper h subscript 0 baseline colon mu equals 12 against upper h subscript 1 baseline colon mu less-than 12 using a random sample of n equals 4 specimens. calculate the p-value if the observed statistic is x overbar equals 11.8. round your final answer to five decimal places (e.g. 98.76543).

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