Amy is scuba diving. She starts at – 15.5 m relative to the ocean surface. She swims down 4.2 m. Then she swims up halfway to the surface. What is her position
relative to the ocean surface?
(Will give Brainlist)

Shiny white dental insurance costs $258 per year. approximately one-third of insured people need a filling, which averages $110 each. 80% of insured people get a preventive check-up each year, and the average cost of this visit is $95. if you consider shiny white’s income and expenses, what is the expected value of each insured customer?

Which sum or difference identity would you use to verify that cos (180° - ∅) = -cos ∅? a. sin (α -β) = sin α cos β – cos α sin β b. cos (α -β) = cos α cos β – sin α sin β c. cos (α -β) = cos α cos β + sin α sin β d. sin (α + β) = sin α cos β + cos α sin β

Which equation is y = -6x2 + 3x + 2 rewritten in vertex form?