Sarah took the advertising department from her company on a round-trip to meet with potential client including Sharon a total of eight people took the trip she was able to purchase coat tickets for $180 and a first class ticket tickets for $1150 she used her total budget airfare for the trip, which was 3380. How many first class ticket did she buy? How many coach tickets did she buy?

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Step-by-step explanation:

hello from mrbilldoesmath!

answer:

the domain is the set { -2, 0, 2, 3}

discussion:

the domain is the set of x values in the ordered pairs (x,y). taking the x, or first component, of each ordered pair gives   -2, 0, 2, 3.

you,

mrb

x² + 3x + 7 = 0       [ax² + bx + c]

a = 1

b = 3

c = 7

quadratic formula:

    (+/- is this ±)

plug in the numbers into the variables

your answer is a