Is this correct? formula is displayed on image:

no it should bee

x = 15

Step-by-step explanation:

The angle between a tangent and a radius at the point of contact F is 90°

Then Δ GFE is a right triangle

Using Pythagoras identity in the right triangle

x² + 8² = 17²

x² + 64 = 289 ( subtract 64 from both sides )

x² = 225 ( take the square root of both sides )

x = = 15

b. 2 and 4

step-by-step explanation:

d. you cannot tell because there are no values shown.