Use a Calculator to Give the Value to the Nearest $$\theta = \cos ^ { - 1 } ( - 0.9397 )$$

question 55

Multiple Choice

Use a calculator to give the value to the nearest degree.
- $$\theta = \cos ^ { - 1 } ( - 0.9397 )$$

• A) \(162 ^ { \circ }\)
• B) \(157 ^ { \circ }\)
• C) \(160 ^ { \circ }\)
• D) \(- 20 ^ { \circ }\)

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Definitions:

Two-Point Discrimination

The ability to distinguish two separate points when they are simultaneously touched on the skin, a measure of tactile sensory resolution.

Free Nerve Endings

Sensory receptors found in the skin and mucosa that respond to pain, temperature, touch, and pressure.

Temperature Change

A variation in the degree of hotness or coldness of a body or environment, typically measured in degrees Celsius or Fahrenheit.

Memory

The ability of the brain to store, retain, and recall information and experiences.