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Question 9(a) Find (frac{dy}{dx}) Steps of Solution Given ( y = xe^{2x} ): [frac{dy}{dx} = x cdot frac{d}{dx}(e^{2x}) + e^{2x} cdot frac{d}{dx}(x)][frac{dy}{dx} = x cdot 2e^{2x} + e^{2x} cdot 1][frac{dy}{dx} = 2xe^{2x} + e^{2x}][frac{dy}{dx} = e^{2x}(2x + 1)] Explanation of the Steps Given the function ( y = xe^{2x} ), we need to find its … Read more

Question 10(a) Steps of Solution ( a + 4d = 11 ) ( a + 6d = 3(a + d) ) ( a + 6d = 3a + 3d ) ( a + 6d – 3a – 3d = 0 ) ( -2a + 3d = 0 ) ( 3d = 2a ) ( a … Read more

0620/42_Summer_2023_Q1 (a) State which of the oxides, A to H, is responsible for acid rain. (b) State which of the oxides, A to H, has a giant covalent structure. (c) State which of the oxides, A to H, is a reducing agent in the blast furnace. (d) State which of the oxides, A to H, … Read more

Download the paper Answer Question 1 Sulfur dioxide. Explanation: Sulfur dioxide (SO₂) is a gas that can dissolve in water to form sulfurous acid, contributing to acid rain formation. Ammonia. Explanation: Ammonia (NH₃) dissolves in water to form ammonium hydroxide, which is alkaline. Xenon. Explanation: Xenon is a noble gas and is inert, meaning it … Read more

Photosynthesis and Transport in Plants Key Concepts: Photosynthesis: Process by which cells in a plant leaf produce glucose using sunlight, carbon dioxide, and water. Transport in Plants: Glucose produced in the leaves must be transported to other parts of the plant for use and storage. Xylem and Phloem: Xylem: Function: Transports water and mineral ions … Read more

Dogs are loyal companions. The sun rises every morning. The sun rises every morning. What is the sub-atomic particle with the smallest relative mass? Explain why atoms have the same number of protons as electrons. An aluminium atom can be represented as $_{13}^{27}$Al. Identify aluminium’s mass number. Calculate how many neutrons this atom of aluminium … Read more

Dogs are loyal companions. The sun rises every morning. I like to play soccer. Birds sing in the trees. My mom makes delicious cookies. We live in a big house. The moon is bright at night. Flowers bloom in spring. I love reading adventure books. Elephants are enormous animals.