If a ball is thrown straight up into the air with an initial velocity of 55 ft/s, its height in feet after t second is given by y = 55t - 16t2. Find the average velocity (include units, help (units)) for the time period begining when t = 2 seconds
and lasting
(i) 0.5 seconds
Average velocity:
(ii) 0.1 seconds
Average velocity:
-(iii) 0.01 seconds
Average velocity
Finally based on the above results, guess what the instantaneous velocity of the ball is when t = 2.
Average velocity:

hello from mrbilldoesmath!

answer:

x - 3

discussion:

x^2 - 9 = (x-3) (x+3)   so

(x^2-9)/ (x + 3) = x-3

you,

mrb

for this pair of functions g(x)=x-2 and f(x)=|x| is (g o f)(a)= |a| -2

step-by-step explanation:

g(x)=x-2

f(x)=|x|

(g o f)(a)=?

(g o f)(x)=g(f(x))

(g o f)(x)=g(|x|)

(g o f)(x)=|x|-2

(g o f)(a)=|a|-2

x is the total time in minutes for the free response

you are given number of questions as 15 - m and time per item as 8 minutes

to find x multiply the two givens together:

x = 8 * (15-m) = 8(15-m)