Answer:
(-2,9)
(2,-9)
Step-by-step explanation:
The point Q of quadrilateral QRST has coordinate (-9,2).
When this point is reflected across the y-axis , we negate the x-coordinate to obtain .
This point is again rotated through an angle of 90 degrees(counterclockwise) about the origin.
The rule for 90 degrees counterclockwise rotation is .
Therefore the image of Q(-9,2) after a reflection across the y-axis followed by a 90 degrees counterclockwise rotation about the origin is is Q'(-2,9).
However, the rotation could also be clockwise.
The rule for 90 degrees clockwise rotation is .
The image of Q(-9,2) after a reflection across the y-axis followed by a 90 degrees clockwise rotation about the origin is is Q'(2,-9).
Both answers are there, so you can check them since the question did not specify the direction.
solve it thn re check it aks help from parents
a square gives the largest area
25 yards of fence = 25*3 = 75 feet
75/3 = 25 feet
so the dimension should be 25 feet by 25 feet
the area would be 25^2 = 625 square feet
Question: What is the ratio of the length of to DE the length of BC?
Answer: D, 1/5
How? Well what I did was take DE and seen how many time it could fit into BC. BC would take up a total of 5 DE's. So since we already have one which is DE then we would have 1/5.
Note: Let me know if I get it wrong. :)
HOPE THIS HELPS! ^_^
For area count how many squares : 12 whole squares + 3 whole squares( that are made of 6 half squares)= altogether 15 square
15*9=90+45=135 yd²
to find perimeter you need to count sides
4+1+2+1+2+3+1/2+2+(1/2+1/2)+2+(1/2+1/2)+2+1/2+2+1=
=10+4+10+1= 25 yd