Answer:
x + 2y = -8 = y = -4 - 1/2x
y= -1/2x + 4 = y = 4
y= -1/2x - 4 = y = -4
y=-2x - 4 = y = -4
y=1/2x-4 = y = -4
Step-by-step explanation:
(x + 2y = -8 = y = -4 - 1/2x)

Its intersection would be at the centre of the sphere, each line being perpendicular to the other, probably
Answer:
Step-by-step explanation:
10000
ty and ur welcoem hopes this help :)
Answer:
0
Step-by-step explanation:
2/3in=9mi
?in=21mi
we can set up a ratio and proportion, but I would fix that fractions because they tend to be messy
2/3in=9mi
multiply both sides by 3
2in=27mi
so now we have
2in:28mi=?in:21mi

multiply both sides by 21mi
the miles cancel and we get

1.5in=?in
1.5 inches represents 21 miles