Answer:
Step-by-step explanation:
solve for x.
x+9y=18
Add -9y to both sides.
x+9y+−9y=18+−9y
x=−9y+18
solve for y.
x+9y=18
Add -x to both sides.
x+9y+−x=18+−x
9y=−x+18
Divide both sides by 9.
9y/9=−x+18/9
y=−1/9x+2
The area of the inscribed triangle = 3(6^2 x sin 120°) = 3(36sin 120°) = 3(31.18) = 93.53 square in.
Lucy draws a line on a coordinate plane. We have to identify the transformation which will always result in a line perpendicular to Lucy’s line.
Referring to the given options.
By rotating 270 degrees clockwise around the origin, Lucy will get a line perpendicular to the Lucy's line. As, when we rotate 270 degrees clockwise about the origin, we multiplies the x coordinate by '-1' and interchanges the x and y coordinate, which gives the line which is always perpendicular to the Lucy's given line.
