An antique painting has a 40% chance of increasing in value by $10,000 and a 60% chance of decreasing in value by $5000. based on this information, would you recommend investing in the painting?

a. no, the expected value of the painting's worth is a decrease of $500.
b. no, the expected value of the painting's worth is a decrease of $1000.
c. yes, the expected value of the painting's worth is an increase of $500.
d. yes, the expected value of the painting's worth is an increase of $1000.

In one day there are too high tides into low tides and equally spaced intervals the high tide is observed to be 6 feet above the average sea level after six hours passed a low tide occurs at 6 feet below the average sea level in this task you will model this occurrence using a trigonometric function by using x as a measurement of time assume the first high tide occurs at x=0. a. what are the independent and dependent variables? b. determine these key features of the function that models the tide: 1.amplitude 2.period 3.frequency 4.midline 5.vertical shift 6.phase shift c. create a trigonometric function that models the ocean tide for a period of 12 hours. d.what is the height of the tide after 93 hours?