URGENT WILL MARK BRAINLIEST The radius of the Earth is 6367 kilometres. An observer is on top of a lighthouse which is 25 metres high.
How far from the foot of the lighthouse, measured on the surface of the Earth is the horizon that the observer can see?

The water has been on the stove y=9.5x+62.1 after how many minutes will the tempature be 138.1 f

Me solve this problem, and someone clearly explain to me how to solve it.1.) use the value of the discriminant to determine if the given trinomials has 2 real solutions, 1 real solution, or no real solutions.a.  x2  − 4x  − 7 = 0b. 4r2  + 11r  − 3 = 0c. 3m2  + 7 = 0d.  t2  + 2t  + 1 = 0

The sum of these consecutive integers is equal to 9 less than 4 times the least of the integer. find the three integers