Answer:
4
Step-by-step explanation:
2 cubes on each 6 × 8 face will have one surface painted. The sides of dimension 4 cm do not have enough width to have any cubes with only one face painted.
Hence, there are a total of 4 cubes with one face painted.
The new matrix that is formed by the 3A + B is given below. Then the value of x is 102.

<h3>What is the matrix?</h3>
A matrix is a specific arrangement of items, particularly numbers. A matrix is a row-and-column mathematical structure. The
element in a matrix, such as M, refers to the i-th row and j-th column element.
The matrices are given below.

Then the new matrix is given as 3A + B. Then we have

More about the matrix link is given below.
brainly.com/question/9967572
#SPJ1
The answer is mean absolute deviation
Answer:
B. 20
Step-by-step explanation:
First, 20% of 20 is 4.
36 decreased by 4 (36-4) is 32.
The equation is N (160%)=32 or 1.6n=32
160% because it was already 100%, and its increased by 60% (100+60)
Divide both sides by 1.6.
You get n=20
I hope this helps!