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Secondaire 5 • 2a

Hello!

im not sure how to solve this question. If you can explain how, that would be great.

Thanks!

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Mathématiques
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Explications (2)

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    2a January 2024 modifié


    You only have to replace M by 5 and a by

    2 in a); 10 in b); e in c) and finally 3/2 in d)

    image.png


  • Explication d'Alloprof

    Explication d'Alloprof

    Cette explication a été donnée par un membre de l'équipe d'Alloprof.

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    Équipe Alloprof • 2a

    Hello :)

    I think they ask you to use the numbers below to solve the theoric equation, and the answer is suppose to be 5.

    The power of a number is the result of the exponentiation.

    Let's do an example.

    We are searching for :

    $$2^{x}=5$$

    And, we use theoric formula.

    $$M = a^{\log_{a}{M}}$$

    $$5 = 2^{\log_{a}{5}}$$

    Now, you have to isolate a, and you have your answer.

    Hope it helps! :) See you soon :D

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