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문제 8

Digital SAT Diagnostic Practice Quiz · 덱: Digital SAT: Comprehensive Practice (Math & Reading-Writing)

A radioactive isotope has an initial mass of $200\text{ g}$ and decays by $12\%$ every year. Which expression represents the mass after $t$ years?

  1. $200(1.12)^t$
  2. $200(0.88)^t$
  3. $200 - 12t$
  4. $200(0.12)^t$

출처: OpenStax College Algebra 2e, Section 6.1

시험 가이드: SAT — 과목, 형식, 공식 출처.

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