What is the median of 11,17,7,6,7,4,15,9

Median = 8

Step-by-step explanation:

Let us first arrange the data in ascending order.

4,6,7,7,9,11,15,17

As there are eight entries hence the median will be the average of the 4th and 5th data.

4th entry : 7

5th entry : 9

Average = (7+9)/2

= 8

Hence the median is 8

step-by-step explanation: s

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