Answer:
english?
Step-by-step explanation:
Answer:
15°, 75°
Step-by-step explanation:
The range of a projectile on level ground is:
R = v₀² sin(2θ) / g
For a range of R/2 at the same initial velocity:
R/2 = v₀² sin(2A) / g
Dividing the second equation by the first:
(R/2) / R = sin(2A) / sin(2θ)
1/2 = sin(2A) / sin(2θ)
sin(2A) = 1/2 sin(2θ)
The maximum range is when θ = 45°.
sin(2A) = 1/2 sin(90°)
sin(2A) = 1/2
2A = 30°, 150°
A = 15°, 75°
Answer:
Coefficient of Correlation
Step-by-step explanation:
Coefficient of Correlation is a value that ranges between -1 to 1, which is used to denote the closeness or linear relationship between two variables.
The closer the value of the coefficient is to -1 or 1, the stringer the relationship that exists between two variables.
A negative value suggests a negative relationship. Which means, as one variable decreases, the other variable increases.
A positive coefficient of correlation shows a positive relationship between two variables. Which means, as one variable increases, the other also increases.
If the Correlation coefficient is 0, it means there's no relationship between the variables.
Answer:
10x - 5(x - 1) = 20
10x - 5x + 5 = 20
5x + 5 = 20
5x = 20 - 5
5x = 15
x = 15/5
x = 3
Step-by-step explanation:
Answer:
x= -5 + /31 ; -5 - / 31
Step-by-step explanation: