Determine the total distance around (perimeter) the platform shown rounded to 2 decimal places.

Fill in the blank(s) with the appropriate word(s).


20.64 m

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Which term means the amount of heat that is released when a fuel is completely burned?

a. heating value b. specific gravity c. therm d. British Thermal Unit

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Slate is ________.

A) an igneous rock. B) a sedimentary rock. C) a metamorphic rock. D) none of the above.

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The combination of two dissimilar metals promotes ____, or the creation of an electrical current.

A. carbon dioxide B. nitrogen oxide C. fusion D. electrolysis

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What prevents the refrigerant from flowing through the indoor metering device during the heating cycle?

A) The outdoor check valve B) The indoor check valve C) The reversing valve D) The heating shutoff valve

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