2 A chord 12 cm long subtends an angle
of 40° at the centre of the circle. Calcu-
late the radius of the circle.
​

In the field of thermodynamics, rankine is the unit used to measure temperature. one can convert temperature from celsius into rankine using the formula c= r/1.8 - 273, what is the temperature in celcius corresponding to r degrees rankine.

Can someone me i’m confused. will give brainliest and a whole bunch of points

Three numbers x, y, and z are in the ratio 2: 7: 8. if 12 is subtracted from y, then three numbers form a geometric sequence (in the order x, y–12, z). find x, y, and z. there are 2 sets.