Consider the language dn of binary strings representing numbers divisible by some fixed n.

a) can every binary string u be extended to a string uw ∈ dn? prove your answer.
b) can you find a bitstring u in {0, 1} ∗ , such that uw /∈ d17 for any string w with |w| ≤ 4?
c) are there arbitrarily long bitstrings u with the property at (b)? justify your answer.

Floating freely on the flight deck, sally ride communicates with ground controllers in houston during her sts-7 mission in june 1983. sally ride became the first american woman to go into space when she flew on the space shuttle challenger on june 18, 1983

Solution: the categorization of functional and non-functional requirement are as follows: some of the more typical functional requirements include: • business rules• transaction corrections, adjustments and cancellations• administrative functions• authentication• authorization levels• audit tracking• external interfaces• certification requirements• reporting requirements• historical data• legal or regulatory requirementswhile,some typical non-functional requirements are: • performance – for example response time, throughput, utilization, static volumetric• scalability• capacity• availability• reliability• recoverability• maintainability• serviceability• security• regulatory• manageability• environmental• data integrity• usability• interoperability

Answer made of magnesium alloy;