The row-echelon form of the augmented matrix of a system of equations is given. Find the solution of the system.
1
0
4
-1
0
1
-1
3
0
0
1:1
a = -6
C. X=-5
y=4
2= 1
2= 1
b. x = 5
y = 4
z = 1
d. X=6
y=4
2-1

Use the following statements to write a compound statement for the conjunction or disjunction. then find its truth value. p: an isosceles triangle has two congruent sides. q: a right angle measures 90° r: four points are always coplanar. s: a decagon has 12 sides. a) a right angle measures 90° or an isosceles triangle has two congruent sides; true. b) a right angle measures 90° and an isosceles triangle has two congruent sides; true. c) a right angle measures 90° and an isosceles triangle does not have two congruent sides; false. d) a right angle measures 90° or an isosceles triangle does not have two congruent sides; true.