A group consisting of 23 aggressive zombies triples in size every hour. Which equation matches the number of zombies after 2 hours?Z=23(3)2Z=3(1+23)2Z=23(1+3)2Z=3(23)(23)
Q. A group consisting of 23 aggressive zombies triples in size every hour. Which equation matches the number of zombies after 2 hours?Z=23(3)2Z=3(1+23)2Z=23(1+3)2Z=3(23)(23)
Understand the problem: Understand the problem.We need to find the equation that correctly represents the number of zombies after 2 hours, given that the initial number of zombies is 23 and the population triples every hour.
Determine base number and rate: Determine the base number of zombies and the rate of growth.The base number of zombies is 23, and the rate of growth is tripling every hour, which is a multiplication by 3.
Apply exponential growth formula: Apply the exponential growth formula.The general formula for exponential growth is Initial Population×Growth RateTime Period. In this case, the Initial Population is 23, the Growth Rate is 3, and the Time Period is 2 hours.
Plug values into formula: Plug the values into the formula to get the equation.Z=23×32
Evaluate options: Evaluate the options given in the problem to see which one matches our equation.Option A: Z=23(3)2 matches our equation from Step 4.Option B: Z=3(1+23)2 does not match because it suggests adding 1 to 23 before raising to the power of 2.Option C: Z=23(1+3)2 does not match because it suggests adding 1 to 3 before squaring, which is not the correct growth rate.Option D: Z=3(23)(23) does not match because it suggests multiplying 23 by itself, which is not the correct growth pattern.