9 + 9 = 18
42 - 18 = 24
24 / 2 = 12
the length is 12 inches
A because 30 times 29 is 870 and they give a card to everyone except themselves
Your answers are the correct ones. Excellent job.
No. because
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are there two middles to that line segment?? no.
what if i divided it equally like so...:
______|______|_____
no. you've just divided it into 3rds.
so the answer is no. you can only have one midpoint, one middle, in a single line segment.
<span>3(2x+4y-2z)+7(x+y-4z) =
3*2x + 3*4y - 3*2z + 7x + 7y - 7*4z =
6x + 12y - 6z + 7x + 7y - 28z =
(6+7)x + (12+7)y + (-6-28)z =
13x + 19y + (-34)z =
13x + 19y -34z;
</span>
