Writing Quadratic Functions and Equations: Tutorial ? Question
What is the equation of the quadratic function represented by this table?
X
5
6
7
8
9
10
f(x)
-4
5
8
5
-4
-19
Type the correct answer in each box. Use numerals instead of words.
f(x) =
12+

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 )

32.10 is the correct answer