Draw the image of quadrilateral ABCD after each rotation using B as center. 30 degrees counterclockwise

What basic trigonometric identity would you use to verify that sin x cos x tan x =1-cos^(2)x?

Stephen thublin invests $1,000,000 in a 45-day certificate of deposit with 6.55% interest. what is the total interest income from the investment?

How many kilograms of a 5% salt solution and how many kilograms of a 15% salt solution must be mixed together to make 45kg of an 8% salt solution?