A man who is 6 feet tall is standing 12 feet from the base of a lamppost. The man's shadow is 5 feet long. How tall is the lamppost? The lamppost is feet tall. (Round to the nearest tenth as needed.)​

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 table represents a function f(x). what is f(3)? a.-9 b.-1 c.1 d.9

Two line segments are shown in the figure below. suppose that the length of the line along the x-axis is 6, and the length of the hypotenuse of the triangle is 10. what is the equation of the hypotenuse line (shown in red, below)?