The speed of the ball is
ds/dt = 32t
At t =1/2 s
ds/dt = 16 ft/s
The distance from the ground
50 - 16(1/2)^2 = 46 ft
The triangles formed are similar
50/46 = (30 + x)/x
x = 345 ft
50 / (50 - s) = (30 + x)/x
Taking the derivative and substituing
ds/dt = 16
and
Solve for dx/dt
That would be 3.5 b/c it can’t be expressed as a ratio or a simple fraction
Awnser is in the photo below
Answer:
Your selection is correct
Step-by-step explanation:
The graph of cos(3x) will have an amplitude of 1 and will have 3 periods in the interval 0 to 2π. It will cross the y-axis at (0, 1). That is the graph that is shown highlighted in your problem statement.
Your selection is correct.
Slope is 3/1 (3 simplified)
