Find the exact value of cot(23pi/6) without a calculator

Diane owes $387 to her brother. if she debits her bank account $161.25 a month to pay him back, how many months will it take her to pay off the debt?

Question b of 10which of the following describe an angle with a vertex at a? check all that applyo a. labcов. савd dooo c_baco d. zacb

Let x = a + bi and y = c + di and z = f + gi. which statements are true?