Exercice A : Dans une entreprise, on a relevé, les salaires suivants :
2 200 €; 1 580 €; 1 700 € ; 2 100 € ;3 350 €; 2 350
€; 1 520 €; 1 590 €; 2 950 €; 2 200 €; 1 520 €.
1. a) Quel est le salaire moyen de l'entreprise ?
b) Quel est le salaire médian de l'entreprise ?
2. L'emnloyé qui recevait le salaire médian at nanti

the answer is 99.

m∠a is 90°

m∠b is 40°

the solution of the equation is 2.23 ⇒ answer b

step-by-step explanation:

* lets revise the meaning of exponential function

- the form of the exponential function is y = ab^x, where a ≠ 0, b > 0 ,  

  b ≠ 1, and x is any real number

- it has a constant base b

- it has a variable exponent x

- to solve an exponential equation, take the log or ln of both sides,  

  and solve for the variable

* lets solve the problem

∵

- the base is 7 and the exponent is x

- insert ㏑ in both sides

∴

- use the rule

∴ x ㏑(7) = ㏑(77)

- to find x divide both sides by ㏑(7)

∴

* the solution of the equation is 2.23 to the nearest 2 decimal places