Answer:
25 yards
Step-by-step explanation:
A parallelogram is a quadrilateral (a four sided object) with parallel sides
Some of the characteristics of a parallelogram includes :
- Opposite sides and angles are congruent .
- Opposite angels are congruent (D = B).
- Consecutive angles are supplementary (A + D = 180°).
- The diagonals bisect each other
Area of a parallelogram = base x height
Area = 525
base = 21 yards
height = ?
525 = 21 x height
divide both sides of the equation by 21 to find the value of the height
525 / 21 = height
height = 25 yards
Answer:
Step-by-step explanation:
put x=1 ,y=5
y≥4x
5≥(4×1)
5≥4
which is true.
again 5≤1+2
5≤3
which is not true.
so, no (1,5) is not a solution.
To be a solution it should be true for both.
Since the standard deviation is 10 and the first given score is 40, the 40 is 2 standard deviations below the mean.
On the other hand, 80 is 2 standard deviations above the mean.
Thus, we subtract the probability below the z-score which is 2, 0.97725, and the probability below the z-score which is -2, 0.02275.
![\begin{gathered} P(X)=0.97725-0.02275 \\ P(X)=0.9545 \end{gathered}](https://tex.z-dn.net/?f=%5Cbegin%7Bgathered%7D%20P%28X%29%3D0.97725-0.02275%20%5C%5C%20P%28X%29%3D0.9545%20%5Cend%7Bgathered%7D)
We may obtain the values using the z-score table.
Therefore, the approximate value of the probability is 0.955.