An egg is thrown off the top of a building. Its height in meters above

the ground can be approximated by the polynomial 300 + 2t - 4.9t",

where t is the time since it was thrown in seconds.

a. How high is the egg above the ground after 5 seconds?

b. How high is the egg above the ground after 6 seconds?

Answer: a) 187.5 m

b) 135.6 m

Step-by-step explanation:

Hi, to solve this problem we simply have to replace the variable "t" in the equation by the values given in each option.

h (height) = 300 + 2t - 4.9t²

For a) t = 5 sec

Replacing 5 for t, and solving for h:

h = 300 + 2 (5) - 4.9 (5) ² = 300 + 10 - 122.5=187.5 m

Repeating the process:

For b) t=6 sec

h = 300 + 2 (6) - 4.9 (6) ² = 300 + 12 - 176.4=135.6 m

Feel free to ask for more if needed or if you did not understand something.