Answer:
B) Category B
Explanation:
Centers for Disease Control and Prevention along with US Department of Homeland Security has classified biological agents into three categories based on the level of mortality, ease of spreading and the level of preparedness required to deal with them. These biological agents are mostly microorganisms which if not controlled can create a havoc on a big scale.
Category B consists of agents which have moderate potential for dissemination. These are the agents which effect food and water quality and lower down their safety levels. They moderately affect the population and mortality rate is low. However, uncontrolled they can spread and effect many people. For example, salmonella and zika.
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Answer:
18.6x + 3.6
Explanation:
A rocket scientist needs to find the overall thrust of a new rocket design. The rocket has two stages: Stage A and Stage B. Stage A's thrust is defined by the expression 11.2x + 6.4 and Stage B's thrust is defined by the expression 7.4x − 2.9.
Solution:
The rocket thrust is the force that helps in moving the rocket through air and through space. For a multistage rocket, the overall thrust is gotten by summing all the thrust experienced in each of the stages.
Hence the overall thrust for this problem is given by the equation:
Overall thrust = Stage A thrust + stage B thrust
Overall thrust = (11.2x + 6.4) + (7.4x − 2.9)
Overall thrust = 18.6x + 3.6
