[填空题]
A town currently has four Ita( f5nn25kqa8v(srp t n)np)ialian pizza restaurants. A famous chew v yac cv:/czp2r3fr z;zt)6+f wishes to open a new pizza f2 tyvcpvr 3zw a+)rc;/z6c :zrestaurant in the town but wants it to be located as far away as possible from the four current restaurants.
The Voronoi diagram below showing the positions of the four current restaurants on a set of coordinates axes: A(2,3) B(8,4), C(7,1), and D(2,1), where one unit represents 1 km.
1.Write down the coordinates of P. (a,b) a= b=
2.Show that the coordinates of Q are(5.03,3.32), correct to three significant figures.(a,b) a= b=
3.Determine where the famous chef should position their new restaurant.
4.Determine the estimated average weekly number of pizzas this new shop will sell. ≈ pizzas