Everyone in your group ended up getting the virus in their system. (it only takes one pfu to get
past your defenses.) the doubling time of this virus pfu is 1.75 hours in the human body. it takes
22,000 pfu to be in your system before you start showing flu symptoms. how long until each of
you begins to show symptoms? how many virus pfu will be in your system after 3 days?

2.2°  

step-by-step explanation:

let θ = the angle of elevation.

tanθ =77/2020

tanθ = 0.038 12

      θ = tan⁻¹0.038 12

      θ = 2.2°

idk

step-by-step explanation:

payback

5

step-by-step explanation:

both the histogram and the stem and leaf plot will visually show how many shoppers were of various ages within each range of data.   the histogram does not give us the specific ages of these shoppers unlike the stem and leaf plot.a histogram does not give us a true range of the data because we do not know exactly how old the shoppers were. a stem and leaf plot will give exact ages, so we can determine the exact range along with all measures of center and the others measures of center.   with the histogram, we cannot find any of these.

step-by-step explanation: