If cos(x-10) = sin(4x), a value of x is

Describe the 2 algebraic methods you can use to find the zeros of the function f(t)=-16t^2+400.

What is the answer to this question? i'm a bit stumped. also how do i do it? 5(x - 4) = 2(x + 5)

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)?