The number of banks in a country for the years 1935 through 2009 is given by the following function 84.5x+12,367 if x <90)
f(x) =
where x is the number of years after 1900
- 376.6x + 48,689 if x 90
Complete parts (a)-(b).
a) What does this model give as the number of banks in 1970? 2000? 2010?
The number of banks in 1970 is

Can someone tell me if this is perpendicular? !

Indicate the formula for the following conditions: p^c(n,r)=

Astudent is determining the influence of different types of food on the growth rate of spiders. she feeds one group of spiders two caterpillars twice a week. the other group received similarly-sized beetles twice a week. she records the amount of time required for individuals to reach sexual maturity. her hypothesis is that the spiders feeding on caterpillars will have a faster growth rate because caterpillars have a higher protein content compared to beetles. in this experiment, what is the dependent variable? spiders assigned to different feeding groups. time required to reach sexual maturity number of prey items fed twice a week. growth rates of each group.