Answer:
x = 8
Step-by-step explanation:
Since the triangles are similar then the ratios of corresponding sides are equal, that is
= 
Note that ΔBCD is a 3- 4- 5 triangle ( Pythagorean triple), hence CD = 4
Substitute given values into the equation
= 
( cross- multiply )
3x = 24 ( divide both sides by 3 )
x = 8
Answer:
12.50
Step-by-step explanation:
Answer:
1.36
1. Find the mean of all values. (3)
2. Find the distance of each value from that mean (subtract the mean from each value, ignore minus signs)
3. Find the mean of those distances.
<em>See</em><em> </em><em>above</em><em> </em><em>explanation</em>
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