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Ivenika [448]
3 years ago
13

This is a few questions that are confusing for me and I only have 22 points but if you help me and actually help instead of stea

l my points, I will give brainliest and 5 stars and a thanks on your answer and a thanks on your profile. Please help me.

Mathematics
1 answer:
neonofarm [45]3 years ago
6 0

Answer:

n<1.3

Step-by-step explanation:

-2.5n+8.7>5.45

add -8.7 on both sides

-2.5n>-3.25

divide both sides by -2.5

n<1.3   (after division inequality sign changes)

answer of Q2 is -4 2/3

answer of Q3 is -2/9

answer of Q4 is -23/3

answer of Q5 is 2^2. 3^2.5

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Which equation relates the number of triangles in the figure (n) to the perimeter of the figure (p)
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Answer:

Option d is correct.

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Explanation;

Given the perimeter of each figure is;

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Let n be the number of figure and P be the perimeter of the figure;

the only equation which satisfy the given perimeter is;

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Check:

for n =1 which means 1 triangle then;

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for n = 2 , [ i.e 2 triangle]

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and for n =3 [i.e, 3 triangles]

P =7n+20 = 7 \cdot 3 +20 = 21+20 = 41

Therefore, the equation P =7n+20 relates the number of triangles in the figure(n) to the perimeter of the figure(P).


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