x¹ = -2 x² = -8
y¹ = -1 y² = 12
Using midpoint formula,
M = ( x¹ + x²/2 ,y¹ + ý²/2)
or,M ={ -2+(-8)/2 , (-1) +12/2}
or, =( -10/2 , 11/2)
:M = ( -5 , 11/2)
F(x) = -x^2 + 6x + 6
where f(x) represents the height, in feet, of the water from the fountain at different times x, in seconds
rate of change of a distance is speed
at x=5, distance = 11
at x=2, distance = 14
so average rate of change = (14-11)/(5-2) = 1
so ans is D
Answer:
36/132
Step-by-step explanation:
36/132, .27, 27%...
Answer:
The standard error of the mean = 2
Step-by-step explanation:
Given that:
The standard deviation σ = 14
The sample size n = 49
The sample mean
= 56
The formula for calculating the standard error can be expressed as:
![S.E = \dfrac{\sigma}{\sqrt{n}}](https://tex.z-dn.net/?f=S.E%20%3D%20%5Cdfrac%7B%5Csigma%7D%7B%5Csqrt%7Bn%7D%7D)
![S.E = \dfrac{14}{\sqrt{49}}](https://tex.z-dn.net/?f=S.E%20%3D%20%5Cdfrac%7B14%7D%7B%5Csqrt%7B49%7D%7D)
![S.E = \dfrac{14}{7}](https://tex.z-dn.net/?f=S.E%20%3D%20%5Cdfrac%7B14%7D%7B7%7D)
S.E = 2
Therefore, the standard error of the mean = 2