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3 years ago

10

Which matrix can be multiplied to the left of a vector matrix to get a new vector matrix ?

2 answers:

oksano4ka [1.4K]3 years ago

5 0

Answer: The answer is (B).

Step-by-step explanation: We are given four options and we are to select which matrix can be multiplied to the left of a vector matrix to get a new vector matrix. The order of a vector matrix is either n × 1 or 1 × n.

For (A): The order of the matrix is 2 × 1. If we multiply this matrix by a vector matrix of order 1 × 2, then the resulting matrix will be of order 2 × 2, which is not a vector matrix.

For (B): The order of the matrix is 3 × 2. If we multiply this matrix by a vector matrix of order 2 × 1, then the resulting matrix will be of order 3 × 1, which is a new vector matrix.

For (C): The order of the matrix is 2 × 2. If we multiply this matrix by a vector matrix of order 2 × 1, then the resulting matrix will be of order 2 × 1, which is a vector matrix of order same as before.

For (D): The order of the matrix is 1 × 2. If we multiply this matrix by a vector matrix of order 2 × 1, then the resulting matrix will be of order 1 × 1, which is a not vector matrix.

Thus, the correct option is (B).

Nataliya [291]3 years ago

3 0

Answer:

<h2>the answer is option c </h2><h2></h2><h2></h2>

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Harlamova29_29 [7]

Answer:

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Step-by-step explanation:

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In which P(0) is the amount spent on 2019 and r is the increse rate, as a decimal.

In the year 2019, Lee County used approximately 55 million gallons of water.

This means that $P(0) = 55$

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This means that $r = 0.021$

So

$P(t) = P(0)(1 + r)^{t}$

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15% of 40

Of = Multiplication

15% Multiply by 40

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15/100= x/140

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Kobotan [32]

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