In Euclidean (standard) geometry, prove: If two lines share a common perpendicular, then the lines are parallel. (You do not nee
d to use axioms of Euclidean geometry in this exercsise, you can use all the standard knowledge about geometry.)
1 answer:
Answer:
Step-by-step explanation:
Standard knowledge about geometry.
Lines can be described as y=mx+b where m is the slope of the line...(1)
Perpendicular lines have perpendicular slopes. Perpendicular slopes are negative reciprocals of each other...(2)
Two lines are parallel ⇔ they have the same slope...(3)
Check the image to read the proof........
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Answer:
Step-by-step explanation:
Answer:
47, 40, 33, 26 are the first four terms of the sequence.
Step-by-step explanation:
Expression representing the sequence is,
where n = number of term in the sequence
For n = 1,
= 47
For n = 2,
= 47 - 7
= 40
For n = 3,
= 47 - 7(3 -1)
= 47 - 14
= 33
For n = 4,
= 47 - 21
= 26
Therefore, first four terms of the sequence are 47, 40, 33 and 26.