Multiple choice

Find the approximate value of given questions. (?)2 + 17.93% of 4249.9 + 14.9% of 440 = (9.9)3

  1. 19

  2. 13

  3. 8

  4. 21

  5. 23
Reveal answer Fill a bubble to check yourself
B Correct answer
AI explanation

Approximating the values gives the equation x squared plus 18% of 4250 plus 15% of 440 equals 10 cubed. Calculating the terms yields x squared + 765 + 66 = 1000, which simplifies to x squared + 831 = 1000. Solving for x squared gives 169, so x equals 13.

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