Suppose a Password Must Consist of Two Letters Followed by Three

question 9

Multiple Choice

Suppose a password must consist of two letters followed by three digits. Repeated characters are allowed. How many such passwords are possible?

• A) 820
• B) 468,000
• C) 676,000
• D) 1,757,600

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Definitions:

Bare Rock

Exposed rock surfaces without soil or vegetation cover, often seen in extreme environments or as a result of land degradation.

Interacting Organisms

This term refers to different forms of life that affect each other's existence in an ecosystem, often engaging in various relationships like mutualism, parasitism, or predation.

Competition

An interaction between organisms or species, in which the fitness of one is lowered by the presence of another.

Biological Control Agent

An organism, such as a predator, parasite, or pathogen, intentionally released to control a pest species, reducing its population in a natural or managed ecosystem.