Which is the correct coefficient matrix for this system? 3x + 4y = 12 - x - 6y = 10
2 answers:
We are given system of equations:
Equation 1: 3x + 4y = 12
Equation 2: - x - 6y = 10.
We need to find the coefficient matrix of the system.
<em>Note: A coefficient matrix is a matrix that is formed by the coefficients of the variables of the system.</em>
<em>In first equation 3x + 4y = 12 coefficient of x and 3 and coefficient of y is 4.</em>
<em>In second equation - x - 6y = 10 coefficient of x and -1 and coefficient of y is -6.</em>
<h3>Therefore, coefficient matrix is </h3>.
<h2>Answer:</h2>
The correct coefficient matrix for this system is given as follows.
<h2>Step-by-step explanation:</h2>In linear algebra, a coefficient matrix is a matrix consisting of the coefficients of the variables in a set of linear equations. The matrix is used in solving systems of linear equations.
The matrix is given in the image attached.
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Answer:
Point estimate for the population variance = 3.92 * .
Step-by-step explanation:
We are given that a sample of 5 strings of thread is randomly selected and the following thicknesses are measured in millimeters ;
X X -
1.13 1.13 - 1.188 = -0.058 3.364 *
1.15 1.15 - 1.188 = -0.038 1.444 *
1.15 1.15 - 1.188 = -0.038 1.444 *
1.24 1.24 - 1.188 = 0.052 2.704 *
1.27 1.27 - 1.188 = 0.082 <u> 6.724 * </u><u> </u>
<u>= 0.01568 </u>
Firstly, Mean of above data, =
=
= 1.188
Point estimate of Population Variance = Sample variance
= =
= 3.92 *
.
Therefore, point estimate for the population variance = 3.92 * .