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What is the difference of a1 =12 and a100=800

Sagot :

Answer:

The common difference would be [tex]\frac{788}{99}[/tex] or [tex]7\frac{95}{99}[/tex].

Step-by-step explanation:

  • We must first recall the formula for arithmetic sequence/progression.
    [tex]a_{n}=a_{1}+(n-1)d[/tex]
  • Distinguish all of the given terms in the formula, and find what is being asked.
    [tex]a_{100}=800\\a_{1}=12\\n=100\\d=?[/tex]
  • Substitute all of the given values in the formula above.
    [tex]a_{n}=a_{1}+(n-1)d\\a_{100}=a_{1}+(n-1)d\\800=12+(100-1)d\\800=12+(99)d\\800-12=99d\\99d=788\\d=\frac{788}{99}\\ \\d=7\frac{95}{99}[/tex]

Reference Explanation: brainly.ph/question/29295726