It would be 6/7 if im not mistaken.
Answer:
d:126.8
Step-by-step explanation:
How to Find the Mean
Add up all data values to get the sum
Count the number of values in your data set
Divide the sum by the count
The mean is the same as the average value in a data set.
Answer: C) Three-fourths
I.e., the fraction 3/4
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Explanation:
Let's pick on the horizontal sides. Divide the image length Y'Z' = 9 over the corresponding preimage length YZ = 12 to get
(Y'Z')/(YZ) = 9/12 = 3/4 which is the scale factor
The scale factor is less than 1, meaning the image's lengths are shorter compared to the preimage's corresponding lengths.
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Alternative Paths:
You can pick any other pair of corresponding sides to get the same result:
- (X'Y')/(XY) = (7.5)/(10) = 75/100 = 3/4
- (Z'X')/(ZX) = 6/8 = 3/4
It is a quadratic equation, if it is equal to zero. It is not factor able.
