Let u = {a, b, c, d, e, f, g, h, i}
a = {b, c, e, g}
b = {a, b, c, d, g, i}
c = {c, d, f}
d = {a, c, e, g, h}
find
a u b, a u c, a u d, a ∩ b, a ∩ c, a ∩ d, a ∩ b ∩ c ∩ d, a - d, c - d

An airport in death valley is 60 feet below sea level, and an airplane is flying 2,000 feet above sea level. how many feet must the plane descend in order to land? a. 2060 b. 2000 feet c. 1940 feet d. 1880 feet e.1400 feet will mark as brainliest

Aiden buys two bags of chips at $1.09 each and a 20 ounce soda for $1.20 at the gas station.he knows that the state tax is 5.5. how much change will he receive from a $5 bill?

Select the correct answer. what is the exact value of sin (157.5°)? a. 'sqrt(2 - sqrt(2))/2 b. *"-"'sqrt(2 + sqrt(2))/29 c.'sqrt(2 + sqrt(2))/4" d. "-"sqrt(2 + sqrt(2))/4)