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JSS INTERNATIONAL SCHOOL, DUBAI , Mock II Examination 2020-21 MATHEMATICS Grade: X Duration: 2Hr.30Min Max Marks: 80 Date: 17/01/2021 Answers to this Paper must be written on the paper provided separately. You will not be allowed to write during the first 15 minutes. This time is to be spent in reading the question paper. The time given at the head of this Paper is the time allowed for writing the answers. -----------------------------------------------------------------------------------------------------------------------------------------Attempt all questions from Section A and any four questions from Section B. All working, including rough work, must be clearly shown and must be done on the same sheet as the rest of the answer. Omission of essential working will result in loss of marks. The intended marks for questions or parts of questions are given in brackets [ ]. -----------------------------------------------------------------------------------------------------------------------------------------SECTION A (40 Marks) Attempt all questions from this Section. Question 1 (a) If b is the mean proportion between a and c prove that 4 + 2 2 + 4 4 + 2 2 + 4 = 2 2 (b) Solve the equation 4 2 5x 3 = 0 and give your answer to two decimal places. (3) (3) (c) AB and CD are two parallel chords of a circle such that AB = 24cm and CD = 10cm.If the radius of the circle is 13cm, find the distance between the two chords. (4)
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