I'm not sure what your variables are, but I will try task 3 with you.
y=$500(in billions)
x= the number of years that have passed since 2009
percentage of decrease: 1 - % =
so your formula will look like this: y(1 - %)^x
We have to multiply those measurements to get the area of a living room
10.6 ft * 9.28 ft
98.368 ft^2
This is how I would go about solving this, hope it helps.
Answer:
10ft
Step-by-step explanation:
volume= 502ft³
or, πr²h = 502 ft³
or, h= 502/ (4²π)
or, h= 9.98~10ft
To solve this problem just do the following,
x+9=-12
-9 -9
x=-21
Check
-21+9=-12 = True
Hope this helps!=)
