Marseilles and Algiers lie on the same longitudinal line. Algiers is at 37 degrees latitude and Marseilles is at 47 degrees latitude. If the earth is a sphere of radius 4000 miles, use arc length to find the distance between the cities. [Use pi = 3.14, and round to the nearest mile.]

A) 620 miles

B) 680 miles

C) 730 miles

D) 760 miles

Find cot x if sin x cot x csc x = √2

Simplify using positive exponents only.

Someone answer this asap for gabriella uses the current exchange rate to write the function, h(x), where x is the number of u.s. dollars and h(x) is the number of euros, the european union currency. she checks the rate and finds that h(100) = 7.5. which statement best describes what h(100) = 75 signifies? a. gabriella averages 7.5 u.s. dollars for every 100 euros. b. gabriella averages 100 u.s. dollars for every 25 euros. c. gabriella can exchange 75 u.s. dollars for 100 euros. d. gabriella can exchange 100 u.s. dollars for 75 euros.