The water level in a lake is currently 15.5 feet. The area where the lake is located is experiencing heavy rainfall. Each day, it rains the level of water in the lake rises by 0.1 of a foot. If the rain continues, after how many days will the water in the lake exceed 18 feet in height? Write and solve an inequality.

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

step-by-step explanation:

answer: c.  

step-by-step explanation:

mixtures containing substances that get attracted to magnet can be separated using a magnet. we can separate iron from a mixture of sand and iron, as only iron attracts to the magnet.