Answer:
t = 2.5 s
Step-by-step explanation:
h(t)=-16t^2 +80t+96
height will be greatest when the derivative (velocity) is zero
h'(t) = v(t) = -32t + 80
0 = -32t + 80
32t = 80
t = 80/32 = 2.5 s
notice that 0 = -32t + 80 is just a version of the kinematic equation
v = u + at
where v is final velocity at the top of the arc or zero
u is the initial upward velocity or 80 ft/s
a is gravity or -32 ft/s²
t is time in seconds
Answer:
C (2,3)
Step-by-step explanation:
All you have to do is substitute in the x and y values.
x=2 y=3
3=2+1 So that is correct.
Then -1/2 times 2+4=3! This is correct.
So the answer is C. Hope this helps, have a good day. c;
If you have a calculator use that and you should get the same answer.
Answer:
2/8 and 4/16
Step-by-step explanation:
You did not show us the figure so we can’t answer this
