Mathematics, 11.03.2021 03:40, mtetwabright1105
Clara states that r² + 5r + 3r is an equivalent expression to 9r. Why is Clara's statement incorrect? You need to substitute using r=1, r=2 and r=4 in both expressions to see if they are equivalent. Then read choices carefully. CHOOSE ALL THAT APPLY.
A. The expression r² + 5r + 3r simplifies to r²+8, which is not equivalent to 9r.
B. When you substitute 1 for r in both expressions, r² + 5r + 3r has a value of 10 and 9r has a value of 9. These values are not equal.
C. The expression r² + 5r + 3r simplifies to 10r, which is not equivalent to 9r.
D. When you substitute 2 for r in both expressions, r² + 5r + 3r has a value of 20 and 9r has a value of 18. These values are not equal.
E. When you substitute 4 for r in both expressions, r² + 5r + 3r has a value of 48 and 9r has a value of 36.
F. The expression r² + 5r + 3r simplifies to r(r+8), which is not equivalent to 9r.
Answers: 1
Mathematics, 21.06.2019 22:00, connorhanratty6487
James is playing his favorite game at the arcade. after playing the game 33 times, he has 88 tokens remaining. he initially had 2020 tokens, and the game costs the same number of tokens each time. the number tt of tokens james has is a function of gg, the number of games he plays
Answers: 1
Clara states that r² + 5r + 3r is an equivalent expression to 9r. Why is Clara's statement incorrect...
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