What is the value of d? -5.5 (d-2)= -12.1

Divide both sides by -5.5.

simplify -12.1/-5.5 to 2.2

add 2 to both sides

simplify 2.2 + 2 to 4.2.

d = 4.2.

Ibelieve the answer would be 7, 13, 23

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 )