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irakobra [83]
3 years ago
6

Choose the correct simplification of (4x3 + 3x2 - 6x) - (10x3 + 3x2)

Mathematics
2 answers:
Doss [256]3 years ago
8 0

Answer:

it would be -6x^3 - 6x


Step-by-step explanation:


vagabundo [1.1K]3 years ago
7 0

Answer:

-6x^3-6x

Step-by-step explanation:

https://www.symbolab.com/solver/step-by-step/%5Cleft(4x%5E%7B3%7D%2B3x%5E%7B2%7D-6x%5Cright)-%5Cleft(10x%5E%7B3%7D%2B3x%5E%7B2%7D%5Cright)

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Could a set of three vectors in ℝ^4 span all ℝ^4? Explain. What about n vectors in ℝ^m when n is less than m?
Elena-2011 [213]

Answer:

Check the ecplanation

Step-by-step explanation:

A set of three vectors in R^{4} represents a matrix of 3 column vectors, and each vector containing 4 entries (that is, a matrix of 4 rows, and 3 columns).

Let A be that 4x 3 matrix. The columns of A span R^{m}. if and only if A has a pivot position in each row. So, there are at most 3 pivot positions in the matrix A, but the number of rows is 4, therefore, there exist at least one row not having a pivot position. If A does not have a pivot position in at least one row, then the columns of A do not span R^{4}. It implies that the set of 3 vectors of A does not span all of R^{4}.

In general, the set of n vectors in R^{m} represents a matrix of in rows, and n columns (an in x matrix). So, there are at most n pivot positions in the matrix A, but n is less than the number of rows. In therefore, there exist at least one row that does not contain a pivot position.

And, hence the set of n vectors of A does not span all of R^{m}. for n < m

8 0
3 years ago
Question
natulia [17]

Answer:

m^2+5m+25/4

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2 years ago
Put the brackets in to make this equation acurate 9+7x3÷10-1=2
liberstina [14]
Question is wrong.......any bracket can not solve this problem
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Step-by-step explanation:

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2 years ago
Is the given ordered pair a solution to the equation? <br><br><br> y=2x+7;(-2, 3)
iren2701 [21]

Answer:

The answer to your question is: Yes, it is a solution

Step-by-step explanation:

           

Point  (-2, 3)

                         Line:            y = 2x + 7

Process, replace the point in the line

                                          3 = 2(-2) + 7

                                          3 = -4 + 7

                                          3 = 3

As we got that 3 equals 3, then the point given is a solution of the equation.

               

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3 years ago
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