You can write the equations of motion as
h(t) = -16t² + v₀sin(θ)t
d(t) = v₀cos(θ)t
Solving the second of these for t and substituting into the first equation gives the time of flight as
0 = -16t² + d(t)·tan(θ)
t = √(d(t)·tan(θ)/16)
So, for d(t) = 400 and θ = π/6, this becomes
t = √((400/16)/√3)
t = 5/√(√3) ≈ 3.79918
The ball is in the air about 3.80 seconds.
Answer:
5 and 6 because it is the nearest
You would have to subtract 13 from 36 to find the amount of females.
36-13 = 23
there must be 23 females
23:13 is the ratio
400+0.1s
400 represents how much she earns per week
0.1 represents the percentage
s represents her weekly sales
0.1s represents how much of the weekly sales she gets to have.(I'm not sure if I worded the last one correctly.)
Answer:
Option C)
Step-by-step explanation:
We are given the following in the question:
"-7 and a number 5 units to the right of -7"
The nubmer 5 units to the right of -7 will be:
The number line shows the two marked points.
As observed from the number line, we can write the inequality:
Thus, the correct option is
Option C)
