Given the system
3x+5y+z=3,
2x+y-z=2,
x-3y-4z=1

which statement is true?

a) the system has one unique solution because the determinant of the coefficient matrix is not zero.
b) the system has one unique solution because the determinant of the coefficient matrix is zero.
c) the system has no unique solution because the determinant of the coefficient matrix is not zero.
d) the system has no unique solution because the determinant of the coefficient matrix is zero

A

Step-by-step explanation:

The determinant of the coefficient matrix is

Since the determinant is not zero, the system of these three equations has one unique solution.

false

step-by-step explanation:

false.   two legs of the trapezoid would be congruent, but the other two would not.   were all the legs congruent, then we'd have a square; were the 2 shorter sides congruent and the 2 longer sides also congruent, we'd have a rectangle.

the answer is: d) o, f, and kr.

atomic radius of bromine (br) is 114 pm.

atomic radius of oxygen (o) is 73 pm.

atomic radius of fluorine (f) is 72 pm.

atomic radius of krypron (kr) is 112 pm.

the atomic radius of a chemical element is a measure of the size of its atom.

the atomic radius varies with increasing atomic number, but usually increases because of increasing of number of electrons.

the atomic radius decreases across the periods because an increasing number of protons, because greater attraction between the protons and electrons.