Answer:
Matched pairs design
Step-by-step explanation:
Looking at the options;
-It's not a completely randomized design because a randomized design will assign all individuals to a group which in this case it doesn't.
- It's not a randomized block design because randomized block design will group the subjects in question into 2 or more blocks which have a common characteristic and will then randomly assign subjects in each of the blocks.
-It's a matched pair because every individual/subject undergoes measurements both before and after being treated with the drugs.
Thus, the correct option is matched pairs design.
Answer:
In matrix form this can be represented as
![\left[\begin{array}{ccc}0&-2&7\\0&5&0\\2&0&1\end{array}\right]](https://tex.z-dn.net/?f=%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D0%26-2%267%5C%5C0%265%260%5C%5C2%260%261%5Cend%7Barray%7D%5Cright%5D)
![\left[\begin{array}{ccc}x\\y\\z\end{array}\right]](https://tex.z-dn.net/?f=%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7Dx%5C%5Cy%5C%5Cz%5Cend%7Barray%7D%5Cright%5D)
= ![\left[\begin{array}{ccc}10\\1\\5\end{array}\right]](https://tex.z-dn.net/?f=%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D10%5C%5C1%5C%5C5%5Cend%7Barray%7D%5Cright%5D)
Step-by-step explanation:
The given equations are
-2y + 7z = 10
9x + 5y = 1
2x + z = -5
Which can be written as
0x+-2y + 7z = 10
9x + 5y+0z = 1
2x +0y+ z = -5
In matrix form this can be represented as
=
When we multiply the above matrices we get the given set of equations.
In multiplying the matrices we check the no of columns of the first matrix and the number of rows of the second matrix. If they are equal ( as in this case they are 3) then the matrices can be multiplied .
The answer has the number of rows equal to the number of rows of the first matrix and the number of columns equal to the number of columns of the second matrix which is true in this case.
Answer:
x = 45
y = 37
z = 23
Step-by-step explanation:
x + y + z = 105
x = z + 22
x + 15 = y + z
(z + 22) + 15 = y + z
37 = y
x + y + z = 105
(z + 22) + 37 + z = 105
2z = 46
z = 23
x + y + z = 105
x + 37 + 23 = 105
x = 45
<h3>
Answer: 21</h3>
==================================
Work Shown:
Vertical angles are always congruent.
This means they are equal in measure.
A = B
3x-30 = 2x-9
3x-2x = -9+30
x = 21
--------
Side note:
if x = 21, then,
A = 3*x-30 = 3*21-30 = 33 degrees
B = 2*x-9 = 2*21-9 = 33 degrees
They’d
Yes
Shjad
ʕ•ᴥ•ʔ 2748
The
