The total number of people, P, who have been infected with a contagious virus t weeks after the epidemic began is given by the following formula. 1620 1+4(0.5) Complete parts a through d below a. How many people originally had the virus? Originally people were infected.

Originally 324 people were infected.

Step-by-step explanation:

Given the function

P = 1620/(1 + 4(0.5)^t)

Where;

P is the total number of people, who have been infected with a contagious virus t weeks after the epidemic began.

t is the number of weeks after the epidemic began.

To determine the number of people who originally have the virus. At this time

t = 0

Therefore, substituting t = 0 into the function of P

P = 1620/(1 + 4(0.5)^0)

P = 1620/(1 + 4)

P = 324 people.

Originally 324 people were infected.

if x = 1, then the answer is 3.5

3. (5x + 1) - (-10x + 6)

simplify the answer choice. combine like terms. remember to distribute the negative to the terms inside the second parenthesis. also remember that two negatives = one positive, and one of each sign = negative.

- (-10x + 6) = + 10x - 6

simplify. combine like terms:

5x + 1 + 10x - 6

5x + 10x + 1 - 6

15x - 5

∴ it is your answer

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