Which of the following represents a geometric sequence? I 1/4, 1/4, 1/4, 1/4 II 1/4, 1/5, 1/6 III 1/4, 1, -4, 1/6 IV 1/4, -4, 1/
LenaWriter [7]
I'm pretty sure it would be none of these because1/4*5=1 and 1/4 then it would be 6 and 1/4 then it would be 31 and 1/4
Answer:
36
Step-by-step explanation:
The maximum height is the y-coordinate of the vertex
given a quadratic in standard form : ax² + bx + c : a ≠ 0
then the x-coordinate of the vertex is
= - 
y = - x² + 20x - 64 is in standard form
with a = - 1, b = 20 and c = - 64, hence
= -
= 10
substitute x = 10 into the equation for y
y = - (10)² + 20(10) - 64 = 36 ← max height
Answer:
0.408 hour / device
Step-by-step explanation:
As we know The army contract was for 4,707 devices that were produced by 16 workers which means 1 worker can produce:
≈294 devices in 3 weeks.
<=> 294 devices= 3*40 hours
<=> 294 devices = 120 hours
<=> 1 device = 120/294 = 20/49 ≈ 0.408 hour
So it takes 0.408 hour for a worker to finish producing 1 devicein the army contract