The circumfrence of a half circle is 24cm what is the perimeter

Consider circle h with a 3 centimeter radius. if the length of minor arc what is the measure of zrst?

What is the result of the following division?

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)