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Write the expression 7x^3-28xy^2 as the product of 3 factors

If sin(x) = 0 and cos(x) = 1, what is tan(x)?

In the field of thermodynamics, rankine is the unit used to measure temperature. one can convert temperature from celsius into rankine using the formula , what is the temperature in celsius corresponding to r degrees rankine? a. 9/5(c - 273) b. 9/5(c + 273) c. 5/9( c - 273) d. 5/9( c + 273)