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4 years ago

Which equations support the fact that rational numbers are closed under addition?

2 answers:

7 0

I think this first answer choice is supposed to be "1/3+1/3=2/3" (If so then that's the correct answer) and the second one answer would be √9+√9=2<span>√9</span>

Talja [164]4 years ago

5 0

Do you mean
√9 + √9 = 2√9

if so it is the answer

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3 years ago

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qaws [65]

Answer:

$a=10.88\pi$

Step-by-step explanation:

using the formula below, the central angle is 20° (bc 360-180-160=20)

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3 years ago

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2 years ago

rail fares go up by 10%, and josie’s new season ticket to london costs £1342. calculate how much more she has to pay now than sh

Naya [18.7K]

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3 years ago

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melisa1 [442]

Answer:

The equation will be:

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Step-by-step explanation:

Given that at one station, gas costs $2.75 per gallon.

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3 years ago