\$1200 is deposited into a savings accountInterest is compounded annually. After 1 year , the value of the account is $1284. After 2 years, the value of the account is $1373.88 This scenario can be represented by an exponential function of the form f(x) = 1200 * (b) ^ x where f(x) the amount in the savings accountand time in years. What is the value of b ?

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 )