The height of a tree (in feet) is a function of the age of the tree (years). This function is written h(a). What is true about this function? Answer choices : h(12) is the height of the tree after 12 years. h(20) is the year when the tree is 20 feet tall. h(45) is the amount of time it takes for the tree to grow to 45 feet.

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 )