Đường tròn (c) đi qua điểm m(2;1) và tiếp xúc với hai trục toạ độ Ox Oy có phương trình là

a

step-by-step explanation:

its wrong

this is a geometric sequence with common ratio r

r = = = = 3

(a)

to obtain a term in the sequence multiply the previous term by 3

= 3 ← recursive rule

(b)

the n th term of a geometric sequence is

=

where is the first term and r the common ratio

= 6 × ← explicit rule

-8(4)                                                                                                                                                 hope this !                                                            

the cost of of one ticket in the fall festival = $0.75

number of tickets bought = 18 (number of people)

total money paid by kendall = $33.50

part a:

let the admission fee be = t

y = total cost = 33.50

x = number of tickets = 18

the admission fee is paid once.

the overall equation becomes,

18(0.75) + t = 33.50 , that gives t = 20