From the turn of the twentieth century the number of newspap

From the turn of the twentieth century, the number of newspapers sold (per thousand in population) grew rapidly until the 1930s, when the growth slowed down and then declined. The years 1940 to 1946 saw a \"spike\" in growth, but the years 1947 to 1954 saw an almost equal decline. Since 1954 the number has continued to decline, but at a slower rate. The number N of papers sold per thousand in population for each period respectively can be approximated by: -0.13t2 + 8.1t + 208 t greaterthanorequalto 0 -5.75|t - 46| + 374 38

Solution

Exact no. of subscription in 1950 can be calculated by inserting the value of t=50 in respective equation

The no. of papers sold=-5.75(t-46)+374

=-5.75(50-46)+374=-23+374=-351