Triunghiurile echilaterale ABC și BCD sunt situate în plane diferite, iar E este mijlocul
laturii BC. Demonstrați că BC 1 (ADE).(dau coroana )​

Aball is thrown from a height of 139 feet with an initial downward velocity of 15 ft/s. the ball's height h (in feet) after t seconds is given by the following. h=139-15t-16t^2 how long after the ball is thrown does it hit the ground? round your answer(s) to the nearest hundredth. (if there is more than one answer, use the "or" button.) t =

Which function represents the sequence? f(n)=n+3 f(n)=7n−4 f(n)=3n+7 f(n)=n+7

One positive integer is 2 less than another. the product of the two integers is 24. what are the integers