Sarah took the advertising department from her company on a round trip to meet with a potential client. Including Sarah, a total of 15 people took the trip. She was able to purchase coach tickets for $110 and first-class tickets for $950. She used her total budget for airfare for the trip, which was $9210. How many first-class tickets did she buy? How many coach tickets did she buy?

answer: this doesnt make any sense especially the photo.

step-by-step explanation:

circle area = pi * radius^2

if diameter = 10 then radius = 5

circle area = pi * 5^2

circle area = pi * 25

circle area = 78.5398163397 square units

step-by-step explanation:

answer: cos [   arcsin (3/5) - arccos (1/2) ] =

step-by-step explanation: × = 3/5 = 0.6--> x = 36.87 and x = 180 - 36.87 = 143.13 deg

cos y = 1/2 --> y = +- 60 deg a. cos (x - y) = cos (143.13 - 60) = cos 83,13  

=

0.12

b. cos (36.87 - 60) = cos (-23.23) = 0.92