A plane traveled from California and back. It took one hour longer on the way out than it did on the way back. The plane's avera
2 answers:
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Answer:
19.2
Step-by-step explanation:
Add 12 squared to 15 squared(144+225)
Square root the answer()
Round to the nearest tenth(19.209)
The true statement is (c) No; the slopes of segment EF and segment DF are not opposite reciprocals.
<h3>Right triangles </h3>Right triangles have a pair of perpendicular lines
Coordinates
The coordinates are given as:
- D = (-2,-1)
- E = (-2,2)
- F = (0,0)
Start by calculating the slopes of lines DF and EF using:
So, we have:
Also, we have:
For the triangle to be a right triangle, then the calculated slopes must be opposite reciprocals.
i.e.
By comparison, the slopes of both lines are not opposite reciprocals.
Hence, the true statement is (c)
Read more about right triangles at: