Kelsey is a jeweler working on a brooch for a client. To start her design, she cuts a regular octagon from a sheet of silver, with sides 1 cm long.
А
1 cm
E
B
For the next layer of her design, she wants to cut a circle out of a copper sheet that
is tangent to the edges of the octagon.
1. What is the radius of the copper circle? Explain.

The axis of symmetry for the graph of the function f(x)=1/4^2+bx +10 is x=6. what is the value of b?

Simonne used the following steps to simplify the given expression. 12 - 3(-2x + 4) step 1: 12 + (–3)·(–2x) + (–3)·(4) step 2: 12 + 6x + (–12) step 3: 12 + (–12) + 6x step 4: 0 + 6x step 5: 6x what property of real numbers was used to transition from step 3 to step 4? a. identity property of addition b. inverse property of addition c. associative property of addition d. commutative property of addition

Aperpendicular bisector, cd is drawn through point con ab if the coordinates of point a are (-3, 2) and the coordinates of point b are (7,6), the x-intercept of cd is point lies on cd.