Determine the optimal number of hours to use machines a and b to excavate and grade a cul-de-sac at minimum cost. solve using graphical method. given a construction site has machines that simultaneously excavate and grade machine a grades: ga = 18.9 unit h-1 and excavates: ea = 15.5 unit h-1 the cost to operate machine a is: ca = 101 $ h-1 machine b grades: gb = 10.2 unit h-1 and excavates: eb = 23.2 unit h-1 the cost to operate machine b is: cb = 1.10e2 $ h-1 each machine can be assigned to the cul-de-sac for no more than 10 hours. amount of grading: g = 100 unit amount of excavating: e = 150 unit "units" here are a measure of volume

the correct answer is c.stops after infancy and childhood.

myelin is the substance of the central nervous system (cns) that insulates nerve cell axons to increase the speed at which nerve impulse travels. myelination is a process of myelin formation. this process occurs postnatally, begins in the embryo during the midst of early development and finishes after birth.

answer:

my guess it 8 i'm probably wrong

answer:

in baseband transmission the whole bandwidth of the cable is utilized by a single signal. eg.Ethernet is using Basebands for LAN.

In the broadband transmission, multiple signals are sent on multiple frequencies simultaneously using a single channel. eg.Digital Subscriber Line (DSL)