Answer:
Step-by-step explanation:
4 x 6 1/4
4 x 25/4
= 25
Answer:
Both parallelogram and trapezoid are convex quadrilaterals.
In a parallelogram, both pairs of the opposing sides are parallel while, in a trapezoid, only a pair is parallel.
The diagonals of the parallelogram bisect each other (1:1 ratio) while the diagonals of the trapezoid intersects with a constant ratio between the sections.
Hope this helps have a nice day:) -Jordie-
Answer:
they are subtracting 6 from each number
Let t = the total number of hamburgers and cheeseburgers, c = the total number of cheeseburgers, and h = the total number of hamburgers.
t = c + h where t = 600
c = h + 50
Use substitution to solve for h:
600=(h+50)+h
600= 2h+50
600-50=2h
550=2h
550/2=2h/2
h=275
therefore, 275 hamburgers were sold on thursday.
Answer:
Cannot create sample
Step-by-step explanation:
We are given the following in the question:
4, -2, -6, 19, 6
Formula:
where
are data points,
is the mean and n is the number of observations.
Sum of squares of differences = 0.04 + 38.44 + 104.04 + 219.04 + 3.24 = 364.8
![s^2 = \dfrac{364.8}{4}} = 91.2](https://tex.z-dn.net/?f=s%5E2%20%3D%20%5Cdfrac%7B364.8%7D%7B4%7D%7D%20%3D%2091.2)
If we add an observation equal to the mean of given sample, then the mean and of new sample will not change.
New sample:
4, -2, -6, 19, 6, 4.2
![Mean =\displaystyle\frac{25.2}{6} = 4.2](https://tex.z-dn.net/?f=Mean%20%3D%5Cdisplaystyle%5Cfrac%7B25.2%7D%7B6%7D%20%3D%204.2)
Sum of squares of differences = 0.04 + 38.44 + 104.04 + 219.04 + 3.24 + 0 = 364.8
![s^2 = \dfrac{364.8}{5}} = 72.96](https://tex.z-dn.net/?f=s%5E2%20%3D%20%5Cdfrac%7B364.8%7D%7B5%7D%7D%20%3D%2072.96)
Thus, the variance of new sample changes.
Thus, it is not possible to create a sample.