What is the difference in simplest form n^2+3n+2/n^2+7n+10 - 2n/n+5

The simplest form of the function will be given by:
n^2+3n+2/n^2+7n+10 - 2n/n+5
=[(n+1)(n+2)]/[(n+5)(n+2)]-2n/(n+5)
=(n+1)/(n+5)-2n/(n+5)
=[n+1-2n]/(n+5)
=(1-n)/(n+5)

 (1-n)/(n+5)

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 )