Odpowiedź:
a - jeden bok = 4x
b - drugi bok = 7x - 3
obwód = 2(4x + 7x - 3) = 2(11x - 3) = 22x - 6
dla x = 9 [j]
22x - 6 = 22 * 9 - 6 = 198 - 6 = 192 [j]
[j] - znaczy właściwa jednostka
a = 4x
b = 7x - 3
Obw = 2a + 2b = 2(a + b) = 2(4x + 7x - 3) = 2(11x - 3) = 22x - 6
dla x = 9
22x - 6 = 22 · 9 - 6 = 198 - 6 = 192
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Odpowiedź:
a - jeden bok = 4x
b - drugi bok = 7x - 3
obwód = 2(4x + 7x - 3) = 2(11x - 3) = 22x - 6
dla x = 9 [j]
22x - 6 = 22 * 9 - 6 = 198 - 6 = 192 [j]
[j] - znaczy właściwa jednostka
a = 4x
b = 7x - 3
Obw = 2a + 2b = 2(a + b) = 2(4x + 7x - 3) = 2(11x - 3) = 22x - 6
dla x = 9
22x - 6 = 22 · 9 - 6 = 198 - 6 = 192