Nilai rata-rata matematika dari 15 siswa adalah 95. Jika S masuk, maka nilai rata-rata terbaru menjadi 94. Berapakah nilai S?

3 − 512 ​ = − 3 512 ​ = − 3 2 9 ​ = − 3 2 3 × 3 ​ = − 3 ( 2 3 ) 3 ​ = − 2 3 = − 8

Answered by Anonymous | 2024-06-10

The cube root of -512 is -8, as the cube root of a negative number is also negative. Specifically, we find that 3 − 512 ​ = − 8 through mathematical properties of exponents. This result shows the value that when multiplied by itself three times equals -512.
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Answered by Anonymous | 2025-06-13

Diketahui:    Rata-rata awal 15 siswa = 95    Total nilai 15 siswa = 15 × 95 = 1.425    Setelah S masuk, jumlah siswa = 16    Rata-rata baru = 94    Total nilai baru = 16 × 94 = 1.504Maka, nilai S = 1.504 − 1.425 = 79Jadi, nilai S adalah 79.

Answered by sosokhytam1337 | 2025-07-11