Convert the Radian Measure to Degrees $$- \frac { \pi } { 2 }$$

question 230

Multiple Choice

Convert the radian measure to degrees. Round to the nearest hundredth if necessary.
- $$- \frac { \pi } { 2 }$$

• A) \(- 90 ^ { \circ }\)
• B) \(- 1.57 ^ { \circ }\)
• C) \(- 90 \pi ^ { \circ }\)
• D) \(- \frac { \pi } { 2 } \circ\)

Differentiate between various behavioural therapies and their intended outcomes.

Understand the role of token economies and positive reinforcement in behaviour modification.

Learn the significance of modelling and social skills training in addressing psychological disorders.

Grasp the concept and treatment strategies for phobias through systematic desensitization.

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Definitions:

Geologic Times

A system of chronological dating that relates geological strata to time, used to describe the timing and relationships between events that have occurred throughout Earth's history.

First Land Plants

Early plants that began to colonize the land over 470 million years ago, evolving adaptations to survive in terrestrial environments.

Radiometric Dating

Radiometric dating is a technique used to date materials such as rocks or carbon, by determining the relative proportions of particular radioactive isotopes present in the sample.

Isotope Decays

The process by which an unstable atomic nucleus loses energy by emitting radiation, leading to a change in its atomic number or mass.