What are the zeros of the function below? Check all that apply.
2 answers:
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ANSWER
The correct answer is option B.
EXPLANATION
We can only multiply two matrices if and only if the number of columns in the first matrix is equal to the number of rows in the second matrix.
The first matrix given to us has the dimension,
This matrix has 5 columns.
So the second matrix must have 5 rows.
Among the possible answers, the matrix that has 5 rows is the one with dimension,
Therefore the correct answer is B.
Note that, the dimension of a matrix is given by
The correct answer is option B.
EXPLANATION
We can only multiply two matrices if and only if the number of columns in the first matrix is equal to the number of rows in the second matrix.
The first matrix given to us has the dimension,
This matrix has 5 columns.
So the second matrix must have 5 rows.
Among the possible answers, the matrix that has 5 rows is the one with dimension,
Therefore the correct answer is B.
Note that, the dimension of a matrix is given by
The complete question in the attached figure
we know that
find the square of the speeds of individual particles
2.8²----> 7.84
3.2²---->10.24
5.8²----> 33.64
7.3²----> 53.29
7.4²---> 54.76
average=[7.84+10.24+33.64+53.29+54.76]/5-----> 159.77/5----> 31.954
step 2
find the square root of the average
√31.954=5.65
therefore
the answer is
the option b) 5.7 m/s
we know that
the root mean square speed, is the square root of the average (mean) of all of the square of the speeds of individual particles in a gas.
step 1find the square of the speeds of individual particles
2.8²----> 7.84
3.2²---->10.24
5.8²----> 33.64
7.3²----> 53.29
7.4²---> 54.76
average=[7.84+10.24+33.64+53.29+54.76]/5-----> 159.77/5----> 31.954
step 2
find the square root of the average
√31.954=5.65
therefore
the answer is
the option b) 5.7 m/s