Find the value of cos theta, if sin theta = 1/2 ; 0° <= theta < 90°.

Solving systems of linear equations: tables represent two linear functions in a systemöwhat is the solution to this system? 0 (10)0 (1.6)0 18,26)0 18-22)

The figure below shows rectangle abcd and the triangle eca on a coordinate plane.which of the following expressions represents the perimeter of triangle of triangle eca in units

In the equation sqrt(n+5)-sqrt(11-10)=1. what is the value of n