Aradioactive substance decays exponentially. a scientist begins with 100 milligrams of a radioactive substance. after 27 hours, 50 mg of the substance remains. how many milligrams will remain after 36 hours?

Question 3 of 30 paul buys fruit to make smoothies. he buys 3.78 pounds of apples, 2.12 pounds of peaches, and 4.45 pounds of oranges. paul rounds each weight to the nearest tenth of a pound. about how many pounds of fruit did paul buy? (a) 10.5 pounds (b) 10.2 pounds (c) 10.4 pounds (d) 10.0 pounds 30 points

An airport in death valley is 60 feet below sea level, and an airplane is flying 2,000 feet above sea level. how many feet must the plane descend in order to land? a. 2060 b. 2000 feet c. 1940 feet d. 1880 feet e.1400 feet will mark as brainliest

Select all of the quadrants that the parabola whose equation is y=√x-4 (principal square root) occupies. i ii iii iv