When the terminal side of angle ? in standard position intersects a unit circle at (0.777, 0.629), what is cos ? ?

0.777

Step-by-step explanation:

The cosine is the x-coordinate of the point of intersection of the terminal ray with the unit circle.

x = 17

step-by-step explanation:

in the given figure, two triangles are inscribed in a circle where ∠bae ≅ ∠dae which makes the side be and de equal so we can write it as:

3x - 24 = x + 10

solving this equation for x to get:

3x - x = 10 + 24

2x = 34

x = 34/2

x = 17

therefore, the value of x = 17.