ABC and DEF are similar. The lengths of AB and AC are 5 units each, and the length of BC is 6 units. If the length of EF is 3 units, then the length of DE is _ units. If m < ABC is 53, then m < EDF is _.

Amanager recorded the number of bicycles sold by his company each quarter. his projected sales after t years is given by the expression below. which of the following statements best describes the expression? a. the initial sales of 575 bicycles increases at the rate of 4% over 4 quarters. b. the initial sales of 575 bicycles increases at the rate of 18% over 4 years. c. the initial sales of 575 bicycles increases at the rate of 4% over t quarters. d. the initial sales of 575 bicycles increases at the rate of 18% over t years.

Find the exact value of each of the following. in each case, show your work and explain the steps you take to find the value. (a) sin 17π/6 (b) tan 13π/4 (c) sec 11π/3

Hi i’m not sure how to do question 20 if u could explain how to do it that’d b great