Mathematics, 14.04.2020 20:30, mrashrafkotkaat

The expression n2 + n represents the total number of blocks used in the nth figure of a pattern.

Figure 1 has 2 units. FIgure 2 has 6 units. Figure 3 has 12 units.

Use the equation n2 + n = 56 to determine which figure has 56 blocks.

Figure
has 56 blocks.

Answers: 3

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The expression n2 + n represents the total number of blocks used in the nth figure of a pattern.