Solve the Problem $\$ 5$ Per Foot for Two Opposite Sides, And

question 197

Multiple Choice

Solve the problem.
-A rectangular field is to be enclosed on four sides with a fence. Fencing costs $\$ 5$ per foot for two opposite sides, and $\$ 7$ per foot for the other two sides. Find the dimensions of the field of area $870 \mathrm { ft } ^ { 2 }$ that would be the cheapest to enclose.

• A) \(24.9 \mathrm { ft } @ \$ 5\) by \(34.9 \mathrm { ft } @ \$ 7\)
• B) \(41.3 \mathrm { ft } @ \$ 5\) by \(21.1 \mathrm { ft } @ \$ 7\)
• C) \(34.9 \mathrm { ft } @ \$ 5\) by \(24.9 \mathrm { ft } @ \$ 7\)
• D) \(21.1 \mathrm { ft } @ \$ 5 \mathrm { by } 41.3 \mathrm { ft } @ \$ 7\)

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Definitions:

Short-Term Memory

Short-term memory is a cognitive system that temporarily holds a limited amount of information in an accessible state for cognitive tasks.

Encoding Specificity

The principle that recall is more effective when the context at the time of encoding matches the context at the time of retrieval.

Retrograde Amnesia

A condition characterized by an inability to recall memories formed before the onset of amnesia.

Global Amnesia

A rare condition characterized by the sudden loss of all memories and the ability to form new ones, often temporary and without an identifiable cause.