Abirds watcher saw 3 blue jays on the first day of his vacation. each day after that he saw 2 more blue jays than he did on the previous day. on the last day he saw 27 blue jays. write an equation that could be solved to find the number of days the birdwatcher was on vacation since the 1st day

The number of days is 13.

Step-by-step explanation:

It is given that a birds watcher saw 3 blue jays on the first day of his vacation. Each day after that he saw 2 more blue jays than he did on the previous day.

...

It means the series is

3,5,7,..., 27

The first term of series is 3 and the common differences is 2.

The formula of nth term is

Substitute , a=3 and d=2.

Therefore the number of days is 13.

given that triangle abc is transformed two times to get triangle

a"b"c"

first abc is transformed in to a'b'c' as follows:

the coordinates of a are (1,-1) and transformed into a'(-1,1)

similarly b (4,-2) became b'(-4,2) and

c(7,-2) became c'(-7,2)

i.e. (x,y) becomes (-x,-y)

this is nothing but reflection about a point here origin.

thus first transformation is reflection on the origin.

next is exactly shifting 3 units down

source:

c > -10.55

step-by-step explanation: