Prove these identities: a) (sec x+cosec x)² tan x = (tan x + 1)² (tan x + cot x)

b)1+ tan²Alpha cosec²Beta/1+ tan²Alpha cosec² theta = 1+ sin²Alpha cot²Beta/1+ sin²Alpha cot²theta

c) 1+ 3 cos a - 4 cos³a/1- cos a = (1 + 2cosa)²

d) 1+ cosy - 2cos²y/sin²y = 1+ cosy/1+ cosy

e) 1- sin²A/1+ cosA + 1+ cosA/sinA - sinA/1- cosA = cot²A(1- cosA)

Part a: select all of the ordered pairs that are located on the graph of the equation. part b: does the graph of the equation represent a function? select all correct answers for part a and one answer for part b.

Tabby sells clothing at a retail store, and she earns a commission of 6.25% on all items she sells. last week she sold a pair of jeans for $32.50, a skirt for $18.95, and 2 blouses for $14.95 each. what was tabby's total commission? a $4.15 b $5.08 c $81.35 d $348.60

Guys i need ! graded assignment grade 8 checkpoint 2, part 2 answer the questions below. when you are finished, submit this assignment to your teacher by the due date for full credit. total score: of 9 points (score for question 1: of 4 points) 1. the cost of renting a car for a day is $0.50 per mile plus a $15 flat fee. (a) write an equation to represent this relationship. let x be the number of miles driven and y be the total cost for the day. (b) what does the graph of this equation form on a coordinate plane? explain. (c) what is the slope and the y-intercept of the graph of the relationship? explain.