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1. Which of the following is NOT an integer? A. -7 B. 0 C. 3.5 D. 14 ( free video lesson)
2. The matrix #[[3,2],[7,5]]# is of order: A. 1×2 B. 2×1 C. 2×2 D. 3×3 ( free video lesson)
5. The equation 2x+3=7 has the solution: A. 2 B. 5 C. -2 D. 10 ( free video lesson)
8. Find the gradient of the line 4x−2y+8=0. A. 2 B. -2 C. 1/2 D. -1/2 ( free video lesson)
11. Round off 45.6789 to 3 significant figures. A. 45.7 B. 45.67 C. 45.68 D. 46 ( free video lesson)
30. Express #log_10 1000# as a simple number. (2 marks) ( free video lesson)
31. Solve the simultaneous equations: (4 marks) 3x+2y=12 x−y=3 ( free video lesson)