A rectangle has a length of 12 cm and a width of 7 cm. What is the area of the rectangle?
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Quintin Jeremy Mellem
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Mathematics · Grade 9
Algebraic Expressions: Simplification
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Life Sciences · Grade 10
Cell Biology: Organelle Functions
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Newton's Laws of Motion
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Algebraic Expressions:
Simplification & Factorisation
Welcome to today's classroom session! Master the building blocks of algebra — every equation you solve builds the foundation for future mathematical thinking. You've got this!
25 minEst. Time
15 QuestionsQuiz Length
Grade 9 · Term 2Level
3 / 10Current Question
8 remainingQuestions Left
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Question 1 of 10 — Mathematics · Grade 9
Correct Answer
Excellent work! You nailed it.
Explanation
The mitochondria is the powerhouse of the cell because it produces ATP through cellular respiration. This organelle converts glucose and oxygen into usable energy, carbon dioxide, and water via the process of aerobic respiration.
Study Tip
Remember: mitochondria have a double membrane — the inner membrane folds into cristae, dramatically increasing the surface area for ATP synthesis.
Review lesson
Grade 10 Life Sciences — Cell Biology & Organelle Functions
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Your Performance Summary
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75%Score
20
Total Questions
15
Correct
5
Incorrect
6m 42s
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4
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YouYou
07:15
5
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08:44
6
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Cape_Coder
09:10
7
M
Maths_Ace
10:23
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