The count in a bacteria culture was 900 after 10 minutes and 1600 after 35 minutes. Assuming the count grows exponentially

What was the initial size of the culture? ___

Find the doubling period? ___

Find the population after 105 minutes? ___

When will the population reach 11000? ___

At a sand and gravel plant, sand is falling off a conveyor and onto a conical pile at a rate of 16 cubic feet per minute. the diameter of the base of the cone is approximately three times the altitude. at what rate is the height of the pile changing when the pile is 12 feet high? (hint: the formula for the volume of a cone is v = 1 3 πr2h.)

On average, how many more hits will he get when he bats 100 times at home during the day as opposed to 100 times away at night?

Use the quadratic formula to solve the equation. if necessary, round to the nearest hundredth. x^2 - 20 = x a. 5, 4 b. -5, -4 c. -5, 4 d. 5, -4