Find a solution to the system of equations by finding the reduced row-echelon form of the augmented matrix for the
system of equations.
4x - 2y - 5z = -51
4x – y – 2z = -36
4x - 2y + 4z = -24
a. (-6, 6, 3)
b. (-62, 62, 30)
c. (-6, 6, 62)
d. (-62, 6, 62)

How many solutions does the nonlinear system of equations graphed below have?

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.

Which is an x-intercept of the graphed function? (0, 4) (–1, 0) (4, 0) (0, –1)