2^(3-9)-11 =
1 step: subtract the 3 and 9 to get 6
(3-9)=6
2 step: multiply 2 to its self 6 times and
you should get 64
2*2=4*2=8*2=16*2=32*2=64
3 step: subtract 11 by 64 to get 53
64-11=53
hope I help if so hit the brainliest thanks
42 but give closest number cause its different on test i have state answer
Answer:
After 3 seconds while going up and 6 seconds while coming down
Step-by-step explanation:
Since projectile is launched from ground level with an initial velocity of v 0 feet per second, initial height =0
Height is given by
where v0 = initial velocity = 144
a) When h =288 ft.

At t= 3 or 6 seconds the projectile would be at height 288 ft.
So while going up after 3 seconds it wouldbe at a height of 288 ft and while coming after 6 seconds.
The answer is 25%
(1)
If 64 is 100%, 48 is how much percent:
64 : 100% = 48 : x
x = 100% * 48 : 64
x = 75
(2)
Percent of decrease is:
100% - x = 100% - 75% = 25%