Solve the Problem $t$ Units Are Sold $t > 0$ , Is Given By

question 210

Multiple Choice

Solve the problem.
-The profit made when $t$ units are sold, $t > 0$ , is given by $P = t ^ { 2 } - 31 t + 228$ . Determine the number of units to be sold in order for $\mathrm { P } = 0$ (the break- even point) .

• A) \(t = 31\)
• B) \(\mathrm { t } = 19\) or \(\mathrm { t } = 12\)
• C) \(t > 19\)
• D) \(t = - 19\) or \(t = - 12\)

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Definitions:

Positive Reinforcer

A positive reinforcer is any stimulus that, when presented after a behavior, increases the likelihood of that behavior being repeated.

Secondary Reinforcer

Any reinforcer that becomes reinforcing after being paired with a primary reinforcer, such as praise, tokens, or gold stars.

Extinction

In psychology, the gradual weakening and eventual disappearance of a conditioned response when the conditioned stimulus is no longer paired with an unconditioned stimulus.

Conditioned Fear

A learned response to a stimulus that was previously neutral but has been paired with an aversive event.