With !
tell weather the lines for each pair of equations are parallel, perpendicular, or neither.

1.) y=-7/8x -1 and -8x+7y=-21

2.) y=-1/4x+10 and -2x+8y=6

b.-4 units

all you   do is count how many times you move

the arc length is found by finding the circumference of the full circle (2xpixradius) and then dividing by 4 to find just one quarter of the circle (90 degrees).

step-by-step explanation:

for exempl this   system of equations   y = x - 3

                                                                y = 2x - 5

look   the line : y = x -3     ( red)

                            the line : y = 2x -5 ( bleus)

110698.56 square miles

step-by-step explanation:

multiply 3.8 by 102

387.6

multiply 2.8 by 102

285.6

multiply those two to get