A painter needs to buy a ladder in order to paint a wall that is feet
high 23. In order to ensure the ladder does not fall it
needs to be placed 3 feet away from the wall. What size ladder does the
painter need to buy to ensure that he will be able to paint the highest
point of the wall? Write your answer rounded to the nearest tenth.
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Ответ:
the virus attaches itself to the host cell and inserts it's genetic material into it. then the host cell spreads the viruses genetic material which will result in spreading the virus.