A lake near the Arctic Circle is covered by sheet of ice during the cold winter months. When spring arrives, the ice starts to melt. S SS models the ice sheet's thickness (in meters) after t tt weeks. S = − 0.25 t + 4 S=−0.25t+4S, equals, minus, 0, point, 25, t, plus, 4 What is the ice sheet's thickness at the beginning of spring?

since proposition states that a number is greater than 25, if is true then the number must actually be greater than 25.

this implies that all possible options, except 24, can be accepted

sine

step-by-step explanation:

answer:   x = 3 + √11     and     x = 3 - √11

step-by-step explanation:

x² - 6x + 9 = 11

(x - 3)² = 11

x - 3 = ±√11

    x = 3 ± √11

x = 3 + √11     and     x = 3 - √11

a

step-by-step explanation: