Question

b) A cube of side 2 cm is cut into equal cubes of side 1 cm. The total surface area of the
cubes that are cut out is 192 cm2.
c) If x varies inversely to the reciprocal of y, the product of x and y is a constant.
d) The expression ax2 + by2 + bx2 + ay can be factorised as (x² + y2)(x + y).
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Answer 1

Answer:

Step-by-step explanation:

(5 x 1 = 5 mark. b) A cube of side 2 cm is cut into equal cubes of side 1 cm. The total surface area of the cubes that are cut out is 192 cm2.