Check the true statements below:
a. a number c is an eigenvalue of a if and only if th...
Mathematics, 20.12.2019 18:31 tylerbrewton23
Check the true statements below:
a. a number c is an eigenvalue of a if and only if the equation (a−ci)x=0 has a nontrivial solution x.
b. finding an eigenvector of a might be difficult, but checking whether a given vector is in fact an eigenvector is easy.
c. to find the eigenvalues of a, reduce a to echelon form.
d. a matrix a is not invertible if and only if 0 is an eigenvalue of a.
e. if ax=λx for some vector x, then λ is an eigenvalue of a.
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The administrator of a large assisted living facility wanted to know the average age of the residents living at the facility. he randomly selected 12 residents and determined their age, listed here: 80, 65, 75, 83, 68, 73, 88, 79, 94, 72, 79, 68 what's the average age of the sample of residents? a. 79 years old b. 68 years old c. 75 years old d. 77 years old
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Solve this equation using substitution. {4x + y = −2} {4x + 6y = 44}
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