Hart Gross
01/21/2024 · Junior High School
3. Tentukan himpunan penyelesaian dari \( \left(\frac{1}{5}\right)^{x^{2}+2 x-4}-\left(\frac{1}{5}\right)^{3 x+2} \leq 0 \) ! 4. Zat radio aktif dengan massa 5 kg meluruh sesuai fungsi \( P=8\left(\frac{1}{2}\right)^{t+1} \). Berapakah sisa zat radio aktif tersebut setelah 2 tahun?
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**Problem 3:**
The solution set for the inequality is \( -2 \leq x \leq 3 \).
**Problem 4:**
The remaining mass of the radioactive substance after 2 years is 1 kg.
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