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Juliette [100K]
2 years ago
9

How could you rewrite (-3 + 5) + 8 + (-1)

Mathematics
1 answer:
vagabundo [1.1K]2 years ago
7 0

(-3 + 5) + 8 + (-1)=

2 + 8 - 1 =

= 9

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X^2 + x^2=6^2 what is x​
nikitadnepr [17]

Answer:

x = ±3 sqrt(2)

Step-by-step explanation:

x^2 + x^2=6^2

Combine like terms

2x^2 = 6^2

Divide each side by 2

x^2 = * 6^2/2

Take the square root of each side

sqrt(x^2) =± sqrt(  6^2/2)

Remember that sqrt(a/b) = ±sqrt(a ) /sqrt(b)

x = ±sqrt(6^2)/sqrt(2)

x = ±6 /sqrt(2)

We do not leave square roots in the denominator, so we multiply the top and bottom by sqrt(2)

x = ±6 /sqrt(2) * sqrt(2)/ sqrt(2)

x = ±6 *sqrt(2) /( sqrt(2)*sqrt(2))

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7 0
3 years ago
Can the sides of a triangle have lengths 1, 7, and 11? Explain
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Consider the 3 given sides 1, 7 and 11

7 + 11 = 18 > 1

1 + 11 = 12 > 7

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frez [133]

Answer:

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Because 12 and 11 are not the same number it could be added it it were 11^3 and 11^4. But in this case it cannot.

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