Please help
find two values of θ(0≤θ<2π) that satisfy secθ=5.1258.

much appreciated!

Awrestling tournament begins with 128 competitors. in the first round, each competitor has 1 match against another wrestler. the winner of each match moves on to the next round until there is a winner. write a sequence in which the terms represent the number of players still in the tournament at the end of each round. describe the sequence? how many rounds are in the tournament?

Which steps could be part of the process in algebraically solving the system of equations, y+5x=x^2+10 and y=4x-10

The area (a) of a circle with a radius of r is given by the formula and its diameter (d) is given by d=2r. arrange the equations in the correct sequence to rewrite the formula for diameter in terms of the area of the circle.