The number of bacteria in a culture is increasing according to the law of exponential growth. after 9 hours there are 125 bacteria, and after 21 hours there are 1000 bacteria. (a) how many bacteria were there after 19 hours? (b) about how long does it take for this population to double? check your proposed doubling time by walk-through.

Determine the number of outcomes in the event. decide whether the event is a simple event or not. upper a computer is used to select randomly a number between 1 and 9 comma inclusive. event upper b is selecting a number greater than 4. event upper b has nothing outcome(s). is the event a simple event? (yes or no) because event upper b has (fewer than, exactly, more than) one outcome.

Which of these equations, when solved, gives a different value of x than the other three? a9.1 = -0.2x + 10 b10 = 9.1 + 0.2x c10 – 0.2x = 9.1 d9.1 – 10 = 0.2x

Adozen bananas weigh 3 pounds how many ounces does 1 banana weigh