The temperature of a liquid after being placed in a refrigerator is given by t = 5 + 95 e¡kt ±c where k is a positive constant and t is the time in minutes. a find k if the temperature of the liquid is 20±c after 15 minutes

Areflection of shape i across the y-axis, followed by a , and then a translation left 6 units and down 4 units confirms congruence between shape i and shape ii. alternatively, a of shape ii about the origin, followed by a reflection across the y-axis, and then a translation right 4 units and up 6 units confirms congruence between shape ii and shape i.