BeautyxQueen
24.09.2019 •
Mathematics
Ikinda get this problem but i just want to see what other answers people got to see if i did the question wrong.
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Ответ:
Ответ:
fisrst term is a1
common difference is d
decreases by 4 each time
first term is 19
an=19-4(n-1)
distribute
an=19-4n+4
an=23-4n
you are right
Ответ:
Given:
The triangle ABC is reflected over the x-axis.
The distance between point A and A’ is 14.
To find:
The distance between the x-axis and A’.
Solution:
If a figure is reflected across the x-axis then the corresponding parts are mirror image of each other about the x-axis.
It means the distance between A and x-axis is same as the distance between x-axis and A'.
The distance between point A and A’ is 14.
Let d be the distance between the x-axis and A’. Then,
Therefore, the correct option is 1.