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dlinn [17]
3 years ago
14

HELP!! WHAT ARE THE ANSWERS??!!!​

Mathematics
1 answer:
Bingel [31]3 years ago
3 0
<h3>Answers:</h3>
  • 7. D
  • 8. C
  • 9. D
  • 10. D
  • 11. C
  • 12. B

=================================

Explanation:

The result of problem 7 is undefined because the matrices are not the same size. Both matrices must have the same number of rows, and they must have the same number of columns. This is so the terms match up when we add them. This applies to question 9 as well because subtraction is a form of addition.

For problem 8, we add the corresponding terms. So for instance, along the top we have -2+(-3) = -5 as the first entry in the top row. So that's why the answer is C for problem 8. Problem 10 and 11 are similar to this. Be careful to distribute the negative through to each term in the second matrix when subtracting matrices.

For problem 12, we multiply the outer 3 by each term inside the matrix. We end up with choice B.

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I want my answer please help​
Vlada [557]

Answer:

This is pretty simple

Step-by-step explanation:

So the only thing you need to know about negatives and positives is that if your multiplying or dividing a number with 1 negative in the expreession/equation The answer will always result in a negative. If its 2 negatives its always positive. Thats all you need to know and then just solve it from there.

3 0
3 years ago
Read 2 more answers
It takes Matt 3 minutes to read one page in a book. If he continues to read at the same pace, he can read 15 similar pages in mi
elena-14-01-66 [18.8K]

Answer:

a)45min

b)900min

Step-by-step explanation:

We were told that it takes Matt 3 minutes to read one page in a book.

It implies that 3minutes = 1page of the book

Then he continues to read at the same pace, he can read 15 similar pages in minutes.

a)Then, he can read 15 similar pages in

15x3 minutes.which is 45minutes.

b)Then if the book has 300 pages, it will take him. 300×3 minutes to read it.which is 900mins

5 0
3 years ago
the washington family is applying for a loan to purchase a new home, in order to qualify the must have a net worth greater than
Bogdan [553]

Answer:

yes the answer is definitely C

4 0
3 years ago
Can someone help me with this in
Marat540 [252]

Answer:

Step-by-step explanation:

3 0
3 years ago
This math I just can't figure out
Elena-2011 [213]

Step-by-step explanation:

Here's the first question and how to solve the second.

So the first business start with 250, that's your b in slope.

y = mx + b

y = mx + 250

Now, they charge 14 an hour so that's your m.

y = 14x + 250

x is the number of hours it takes.

The second business is straight up 22 per hour, so it's just y = mx, where b is 0.

y = 22x VS y = 14x + 250

Try plugging in different numbers and seeing how much it take to level out!

4 0
4 years ago
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