What is the 16th term of the following geometric sequence? 5, -10, 20, -40, 80,

The pattern in this sequence is *-2

so

80 is the 5th number

-160, 320, -640, 1280, -2560, 5120, -10240, 2048, -40960, 81920, -163840

The 16th number of this sequence is -163,840

  y= -3x is the required function.

step-by-step explanation:

we have been given a table:

x             y

0             0

1             -3

3             -9

-2             6

we can see that the values of y is -3 times the value of x

hence, the function would be: y= -3x.

put the values of x will give the same y as in the table that means function is satisfying the given table.

54 km / hours

step-by-step explanation:

we need to convert seconds to hours

60 seconds = 1 minutes

60 minutes = 1hour

15 m         60 second   60 minutes

  * *         = 54000 meters/ hour

second     1 minute             1 hour

now we need to convert meters to km

1000 m = 1 km

54000 m       1 km

*   = 54 km / hours

hour               1000m