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storchak [24]
3 years ago
9

Topic: Matrices, vectors

Mathematics
1 answer:
Svetllana [295]3 years ago
4 0

Answer:

Q4: 8; -2; Q5: {7;4;1}.

Step-by-step explanation:

for more details see the attached picture, the answers are marked with red and green colours.

Note, the suggested solutions are not the only way.

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A ferry traveled 1/6 of the distance between two ports in 3/7 hour at this rate what fraction of the distance between the two po
Masja [62]
First, we determine the speed of the ferry by dividing the distance by the time it took to cover that certain distance. 
                                 speed = (1/6) / (3/7)
                                   speed = 7/18
Then, the distance it will travel for an hour is calculated through the procedure below. 
                         distance = (7/18hour) x (1 hour)
                           distance = 7/18
Therefore, after an hour, the ferry will be able to travel 7/18 of the distance between two ports. 
4 0
3 years ago
Read 2 more answers
Let R(x)=3x^3+2x^2+x and S(x)=4+1. Find R(x) * S(x) <br><br> Pls help!!!!
Katarina [22]

3x^3 x 4x^2 = 12x^5

3x^3 x 1 = 3x^3

2x^2 x 4x^2 = 8x^4

2x^2 x 1 = 2x^2

1x x 4x^2 = 4x^3

1x x 1 = 1x

12x^5 + 3x^3 + 8x^4 + 2x^2 + 4x^3 + 1x

Simplify

12x^5 + 7x^3 + 8x^4 + 2x^2 + 1x

Thus, answer is B

Hope this helps!

3 0
2 years ago
Simplify each expression using order of operations. (the one that’s circled)
Zepler [3.9K]

Answer:

18

Step-by-step explanation:

1. 6x6=36

2. 8+36=44

3. 44/11=4

4. 7x2=14

5. 4+14=18

5 0
3 years ago
How many solutions does 2x+ 2x+ 2=4+2x have
yuradex [85]
Let's see!
2x + 2x + 2 = 4 + 2x\\ 4x + 2 = 4 + 2x\\ 4x - 2x + 2 = 4 + 2x - 2x\\ 2x + 2 = 4\\ 2x + 2 - 2 = 4 - 2\\ 2x + 0 = 2\\ 2x = 2\\ 2x/2 = 2/2\\ x = 1\\
The answer is B
3 0
3 years ago
Which of the following statements is always true?
Bezzdna [24]

Answer:

B

Step-by-step explanation:

hope it helps <3333

You look beautiful

7 0
2 years ago
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