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Delvig [45]
3 years ago
14

write an enaquality that expresses the reason the lengths 5 feet , 10 feet and 20 feet could not make a triangle. explain how th

e inequality demonstrates that fact
Mathematics
1 answer:
NikAS [45]3 years ago
7 0
For any triangle, the 2 shortest sides added together have to be longer than the longest sides.

short side (10) + short side (5) needs to be greater than (>) longest side (20)

10 + 5 > 20

15 > 20

This inequality is incorrect, so the lengths cannot make a triangle.

Hope this helps :)

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Answer:

12) B --> x < 8/3

13) B --> x ≤ 1/6

Step-by-step explanation:

12) Solving inequalities is just like solving normal equations where you and add, subtract, multiply and divide sides by the same value. Keep in mind dividing or multiplying by a negative flips the sign:

x - 10 < 6 - 5x

Add 5x to both sides to combine the x terms:

x - 10 < 6 - 5x

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Add 10 to both sides to isolate the x term:

6x - 10 < 6

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Now, divide by 6 on both sides:

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13) Simplify 2 - 4:

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Divide by 6:

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antiseptic1488 [7]

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Hope this helps!
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