$\huge \boxed{\sf C}\\\\\\\displaystyle \sf Substituting\ x=0 \\\\3(0)-3y=12\\\\-3y=12\\\\Dividing\ each\ side\ by\ -3 \\\\\frac{-3y}{-3} =\frac{12}{-3} \\\\y=-4 \\\\\\Substituting\ y=0 \\\\3x-3(0)=12\\\\3x=12\\\\Dividing\ each\ side\ by\ 3 \\\\\frac{3x}{3} =\frac{12}{3} \\\\x=4$

7 0

1 year ago

If a 12-sided regular polygon rotates about its center, at which angle of rotation will the image of the polygon coincide with t

Andreas93 [3]

D) 30

A polygon can rotate a total of 360. This one has 12 sides and 12 angles that are all congruent. So to coincide with original image, it must rotate 1/12 of the way around

360/12=30

3 0

3 years ago

Read 2 more answers

Best answer will get Five stars and a crown

kupik [55]

Answer:

$x ∈ R,a=1$