Use synthetic division to divide 2x4 – 3x3 + 2x2 – 8x – 1 by x – 1.
a. 2x3 – 5x2 – 3x – 11 + 23x−1
b. 2x3 – x2 + 3x – 5 – 6x−1
c. 2x3 – x2 + x – 9 – 10x−1
d. 2x3 – x2 + x – 7 – 8x−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 )