Triangle ABC is dilated with a scale factor of k and a center of dilation at the origin to obtain triangle A'B'C'. What is the scale factor?

Which of these triangle pairs can be mapped to each other using two reflections?

Evaluate cos2θ for cosθ = square root of 3/2

Samantha is growing a garden in her back yard. she spend $90 setting up the garden bed and buying the proper garden supplies. in addition, each seed she plants cost $0.25. a. write the function f(x) that represents samantha's total cost on her garden. b. explain what x represents. c. explain what f(x) represents. d. if samantha plants 55 seeds, how much did she spend in total?