15. the velocity of an object fired directly upward is given by v = 20 – 9.8t, where t is time in seconds. write an inequality which could be used to describe when the velocity will be between 10 and 20 meters per second. (see ex. 8) explain to verify your choice. 10 > 20 – 9.8t > 20 10 > 20 – 9.8t or 20 – 9.8t < 20 10 < 20 – 9.8t or 20 – 9.8t < 20 10 < 20 – 9.8t < 20

Step-by-step explanation:

we are given

The velocity of an object fired directly upward is given by

where t is time in seconds

Since, velocity is velocity is between 10m/s and 20m/s

so, velocity is greater than 10 and less than 20

so, we can write our inequality as

now, we can plug v

and we get

answer: 140

step-by-step explanation:

so just add all then it will be your answer but i am not pretty sur eif it is but hope this i am here to people