HELENA ASKED 5 DRAMA CLUB STUDENTS THEY SOLD THE MEAN OF THE NUMBER OF TICKETS SOD WAS 16.THEN SHE TOOK RANDOM SAMPLES FROM THE ENTIRE DRAMA CLUB OF 75 STUDENTS. THE MEAN NUMBER OF TICKETS SOLD WAS 22.5 COMPARE THE MEANS .IS SAMPLE REPRESENTATION BETTER THAN OTHER ?EXPLAIN WHY OR WHY NOT

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

the answer is a. q=6,r=6√2

step-by-step explanation: