AdaAda

Home / Library / SAT / Digital SAT Diagnostic Practice Quiz / Question 8

Question 8

Digital SAT Diagnostic Practice Quiz · Deck: 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. $200(0.12)^t$

Source: OpenStax College Algebra 2e, Section 6.1

Exam guide: SAT — subjects, format and official sources.

See all the questions in this quiz