Which set of ordered pairs represents a function? (2.-2). (1.5), (-2, 2), (1.-3). (8.-1)}
(3-1). (7.1). (-8.-1). (9. 1), (2, -1)}}
(6.3). (5.2).(-2.-5). (1.-3). (-2. 9)}
(-3. 1) (6.3) (-3.2) (-3. -3) (1.-1)}

Answer: d. 39 cmin the diagram, the approximate length of the minor arc de is 39 centimetres.step-by-step explanation: the formula for the length of an arc in a circle is as displayed below.let the length of the minor arc de = xx = 2( pi )r × angle of sector / 360°from this, we will substitute the values given from the problem into the formula to obtain the length of the minor arc de.x = 2( pi )r × angle of sector / 360°r = radius = 25cmpi as an approximate value = 3.14angle of sector = 120°x = 2( 3.14 )( 25 ) × 120° / 360°x = 157 × 1 / 4x = 39.25x = 39 ( rounded to the nearest whole number as an approximate value )