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NASA contracted for the development of Space Shuttle in 1972. After 4.5 yrs, the project was halfway completed when the Enterprise began flight tests. The segment below represents the length of time between the beginning of development and the first launch. Determine the year Columbia was launched.

Asked by Topperlearning User 4th June 2014, 1:23 PM
Answered by Expert
Answer:

Point E is the mid-point of . Thus, the length of must be two times the length of .

=2

= 2(4.5)

= 9

The length of is 9 yrs.

The launch of Columbia took place in (1972 + 9 yrs) = 1981

Answered by Expert 4th June 2014, 3:23 PM
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