Because it is like a plane. In order to have a plane, there must be at least 3 points. In a chair with three legs, the legs are all in the same plane.
1=10
<span>2=20 </span>
<span>3=29 </span>
<span>4=37 </span>
<span>5=44 </span>
<span>6=50 </span>
<span>7=55 </span>
<span>8=59 </span>
<span>It would cost them $80 dollars to eat seperately so they saved $21.
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The angles form a right angle, so make an equation where they add up to 90 degrees.
(c + 3) + (4c - 13) = 90
Combine like terms.
5c - 10 = 90
Add 10 to both sides.
5c = 100
Divide both sides by 5.
c = 20
Answer:
Step-by-step explanation:
Answer:
A) -127
Step-by-step explanation: