Hi there!
There are four different types of transformations:
-Reflections
-Translations
-Rotations
-Dilations
In a reflection, the shape is simply reflected across a line of reflection. It does not change size or shape, so therefore it is a congruence transformation.
In a translation, the shape is moved up, down, left, or right. It does not change size or shape, so therefore it is a congruence transformation.
In a rotation, the shape is rotated around a point of rotation. It does not change size or shape, so therefore it is a congruence transformation.
In a dilation, the shape is made larger or smaller by a scale factor. It does change size, so therefore it is not a congruence transformation.
The transformation that is not a congruence transformation is a DILATION.
Hope this helps!! :)
If there's anything else that I can help you with, please let me know!
Answer:
3.06
Step-by-step explanation:
The correct answer is - 3.06
Reason -
For sample A :
mean,
= 8.05
Standard deviation,
= 1.36
Size,
= 50
For sample B :
mean,
= 7.26
Standard deviation,
= 1.06
Size,
= 38
Now,
-
= 8.05 - 7.26 = 0.79
Standard deviation error, SE = √(
²/
+
²/
) = 0.2580
Now,
Z-statistic = (
-
)/ SE
= 0.79/0.2580
= 3.06
⇒Z-statistic = 3.06
See solution in photo! Please mark me as brainliest and give a thanks if it helped :) have a nice day
Answer:67
Step-by-step explanation:
I got 180 because (although the picture is smaller and digital meaning I may be off) angle AOD = 85 degrees while angle BOC = 95. 95 + 85 = 180.