The map shows hunter-gatherer migration routes. A map of the world. A key shows Migration Routes. Migration starts 200,000 B C E from East and South Africa into North Africa, moves into southern Europe 100,000 B C E, India and southern China 70,000 B C E, Australia 50,000 B C E, western Europe 40,000 B C E, Papua New Guinea and Solomon Islands 30,000 B C E, southern Asia 25,000 B C E, from Asia to Alaska 15,000 B C E, into North America and South America 12,000 B C E, into Canada 4,500 B C E, to New Zealand and Madagascar 1,500 B C E.

What trend does this map demonstrate about the migration patterns of hunter-gatherers?

Humans migrated from Africa to Asia.
Humans migrated from South America to North America.
Humans migrated to Europe before they migrated to Australia.
Humans migrated to North America before they migrated to Europe.

Spoons are designed to be used for: spring hammering. applying body filler. identifying high and low spots. sanding highly formed areas.

When making changes to optimize part of a processor, it is often the case that speeding up one type of instruction comes at the cost of slowing down something else. for example, if we put in a complicated fast floating-point unit, that takes space, and something might have to be moved farther away from the middle to accommodate it, adding an extra cycle in delay to reach that unit. the basic amdahl's law equation does not take into account this trade-off. a. if the new fast floating-point unit speeds up floating-point operations by, on average, 2ă—, and floating-point operations take 20% of the original program's execution time, what is the overall speedup (ignoring the penalty to any other instructions)? b. now assume that speeding up the floating-point unit slowed down data cache accesses, resulting in a 1.5ă— slowdown (or 2/3 speedup). data cache accesses consume 10% of the execution time. what is the overall speedup now? c. after implementing the new floating-point operations, what percentage of execution time is spent on floating-point operations? what percentage is spent on data cache accesses?

Into what form does the barcode reader convert individual bar patterns?