Solve the quadratic equation x2+8x−30=0 by completing the square. What are the solutions to the quadratic equation, if any?

x=4±46−−√
This equation has no real solutions.
x=4±34−−√
x=±46−−√

Can someone me i’m confused. will give brainliest and a whole bunch of points

Aman is 6 feet 3 inches tall. the top of his shadow touches a fire hydrant that is 13 feet 6 inches away. what is the angle of elevation from the base of the fire hydrant to the top of the man's head?

Given sin∅ = 1/3 and 0 < ∅ < π/2 ; find tan2∅ a. (4√2)/9 b. 9/7 c. (4√2)/7 d.7/9