Find the area of an equilateral triangle (regular 3-gon) with the given measurement.. 3-inch radius. a = sq. in.

Which of the following pairs of functions are inverses of each other? o a. f(x)=x72+8 and 96-9 = 7/x+2) =8 o b. f(x)= 6(x - 2)+3 and g(x) - *#2-3 o c. $4) = 5(2)-3 and 90- 4*: 73 o d. f(x) = 6)-12 and 910 – +12

[10 points, algebra 2]according to my answer key the restrictions are -1 and 4. but why not positive 1?

What is the 9th term in the geometric sequence described by this explicit formula? an=-6. (2)(n-1) apex