Write the system of equations as a matrix equation AX
equals
=B, with A as the coefficient matrix of the system.

4 x
4x
plus
+
2 y
2y
minus
−
6 z
6z
equals
=
1
1
negative 6 x
−6x
minus
−
y
y
minus
−
z
z
equals
=
7
7
negative 4 x
−4x
plus
+
7 y
7y
plus
+
6 z
6z
equals
=
1
1

correct choice is b

step-by-step explanation:

when you calculate the average rate of change of a function, you are finding the slope of the secant line between the two points. for the function the average rate of change from point to point can be calculated as

to find the average rate of change from day 2 to day 10, note that at day 2, 8 houses were sold, so a(2,8) and at day 10, 2 houses were sold, so b(10,2). thus,

step-by-step explanation:

assume that you have 3 different side lengths.   apply the pythagorean theorem here:   square each of the two shortest sides; call them a and b, so that their squares are a² and b².   also square the longest side, calling the result c².

now, if a² + b² = c² is true, the triangle is a right triangle; otherwise it is not a right triangle.

answer: you will have more water.

the answer to this is:

factor 2x2+16x+24

2x2+16x+24

=2(x+2)(x+6)

answer:

2(x+2)(x+6)

hope this hmu if needed