Simplifying the expression would be 19.76.
Answer:
its a
Step-by-step explanation:
2x+2≥20
2x≥18
x≥9
closed circle on 9 because of the = in ≥ and the line going off to the right
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Perimeter = (20 + 2x) mm.
Step-by-step explanation:
The octopus pupil has length 20 mm and the expression for its area is given by (20x - 200) square mm.
If the width of the octopus pupil is w, then 20w = 20x - 200
⇒ w = (x - 10) mm.
Therefore, the expression for its perimeter is 2(Length + Width) = 2 ( 20 + x - 10) = 2( 10 + x) = (20 + 2x) mm. (Answer)
Answer:
B
Step-by-step explanation:
1^2+8^2=