Which stem-and-leaf plot represents this data? 80, 81, 91, 92, 66, 55, 54, 30, 55, 79, 78 A stem-and-leaf plot with a stem value
1 answer:
You are solving for a stem-and-leaf plot that represents the given data: 80, 81, 91, 92, 66, 55, 54, 30, 55, 79, 78.
Note that a stem-and-leaf plot is used in this way:
For example: 8|7
In this case, the stem is the tens place value, and is signified by 8. 7, on the other hand, is the ones place value. <em>Multiple leafs can share the same stem</em>. For example, a stem-and-leaf plot of 85, 86, 87, would give you 8|5 , 6 , 7.
Now, set the given data set in order:
30 , 54 , 55 , 55 , 66 , 78 , 79 , 80 , 81 , 91 , 92
Now, create the stem-and-leaf plot:
Stem | Leaf
~
Your answer will be:
A stem value of 3, with a leaf value of 0. A stem value of 5, with a leaf value of 4 & 5. A stem value of 6, and a leaf value of 6. A stem value of 7, and a leaf value of 8 & 9. A stem value of 8, and a leaf value of 0 & 1. A stem value of 9, and a leaf value of 1 & 2.
~
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Answer:
Step-by-step explanation:
Given: The triangle with coordinate A(4,6), B(2,-2) and C(-2,-4). D is the mid point of AB and E is the mid point of AC.
To prove: DE is parallel to BC.
Construction: Join DE.
Proof: If we prove the basic proportionality theorem that is , then it proves that DE is parallel to BC.
Now, Mid Point D has coordinates= and Mid Point E has coordinates=
Now, AD=
DB=
AE=
EC=
Now,
=
Hence,
Thus, By basic proportionality theorem, DE is parallel to BC.