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:
The correct option is;
C. The rate at which the account is increasing
Step-by-step explanation:
The given parameters are;
The rate at which the compound interest on the savings account is compounded = quarterly
The expression given by her banker to find the amount in the account after t years = 4,200(1.05)^(4t)
Therefore, the 1.05 = The rate at which the account is increasing
Answer:
The value of x is equal to
Step-by-step explanation:
we know that
The diameter divide the circle into two equal parts
In this problem
MO=NO
substitute the values
solve for x
Adds 7 both sides
Divide by 5 both sides
Answer:
Constant of Proportionality is 0.6 or $0.60 per oz
Step-by-step explanation:
Divide $2.40 (cost) by 4 ounces (the number of the item) > 2.40 ÷ 4. Also known as Y/X.
6 students own a bicycle and a car because 25+4+17 = 46 which mean 6 have both