SOLUTION: 1.A culture of bacteria doubles in size every half-hour. If the colony contained 1800 bacteria at noon, how many bacteria will the cutlure contain at 3:00 2.A trapezoid has a he

Algebra ->  Exponents -> SOLUTION: 1.A culture of bacteria doubles in size every half-hour. If the colony contained 1800 bacteria at noon, how many bacteria will the cutlure contain at 3:00 2.A trapezoid has a he      Log On


   

Question 31774: 1.A culture of bacteria doubles in size every half-hour. If the colony contained 1800 bacteria at noon, how many bacteria will the cutlure contain at 3:00
2.A trapezoid has a height of 9xy centimeters. Its shorter base is 14y centimeters, and its longer base is 28y. Use the formula A=1/2(B1+B2)h, where B1 and B2 are the bases and h is the height to find the area of the trapezoid.
Answer by atif.muhammad(135) About Me  (Show Source):
You can put this solution on YOUR website!
1.

It doubles every half hour
At 1200hrs it had 1800 double it
At 1230hrs it would have 3600 double it
At 1300hrs it would have 7200 double it
At 1330hrs it would have 14400 double it
At 1400hrs it would have 28800 double it
At 1430hrs it would have 57600 double it
At 1500hrs it would have 115200!
2.
This is a self-explanatory question. It is pretty obvious you have not even attempted this. Please only submit questions to this site when you have absolutely no idea on how to do it. This question has given you the formula and the values you need to use. The answer basically involves a bit of multiplication.