Each of the interior angles of a regular polygon is 140°. Calculate the sum of all the interior angles of the polygon.
A. 1080° B. 1260° C. 2160° D. 1800° Correct Answer: Option B B. 1260°Points X and Y are 20km North and 9km East of point O, respectively. What is the bearing of Y from X? Correct to the nearest degree.
A. 24° B. 56° C. 127° D. 156° Correct Answer: Option D D. 156°Find the value of x and y in the simultaneous equation: 3x + y = 21; xy = 30
A. x = 3 or 7, y = 12 or 8 B. x = 6 or 1, y = 11 or 5 C. x = 2 or 5, y = 15 or 6 D. x = 1 or 5, y = 10 or 7 Correct Answer: Option C C. x = 2 or 5, y = 15 or 6The weight of a day-old chick was measured to be 0.21g. If the actual weight of the chick is 0.18g, what was the percentage error in the measurement?
A. 15.5% B. 18.2% C. 14.8% D. 16.7% Correct Answer: Option D D. 16.7%Products
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