An Object Is 5

question 108

Multiple Choice

An object is 5.7 cm from a spherical concave mirror. If the image is 4.7 cm tall and 10 cm from the mirror, how tall is the object?

• A) 11 cm
• B) 8.2 cm
• C) 12 cm
• D) 2.7 cm

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Definitions:

Squared Deviation

The squared differences between each observation and the mean, used as part of the calculation for variance.

Variance

A measure of the dispersion representing the average of the squared differences from the Mean.

Score

A numerical or categorical representation of a performance, achievement, or the outcome of an assessment.

Mean

The arithmetic average of a set of values, calculated by dividing the sum of the values by the number of values.