Sis the centre of the circle. a.if pŝq = 142° and qsr = 92°, calculatepôr. b.if qŝr = 115º and pqr = 78°, calculatepsq.

Achemist has 200 ml of a 10% sucrose solution. she adds x ml of a 40% sucrose solution. the percent concentration, y, of the final mixture is given by the rational function: the chemist needs the concentration of the final mixture to be 30%. how many milliliters of the 40% solution should she add to the 10% solution to get this concentration?

Meghan has created a diagram of her city with her house, school, store, and gym identified. a. how far is it from the gym to the store? b. meghan also wants to walk to get some exercise, rather than going to the gym. she decides to walk along arc ab. how far will she walk? round to 3 decimal places.

Type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar.