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Rus_ich [418]
4 years ago
14

Which rational expression is equal to a positive whole number when evaluated?

Mathematics
2 answers:
trapecia [35]4 years ago
6 0

Answer:

B) 8^1/3

Step-by-step explanation:

It is B) 8 ^1/3

we can write 8 as 2^3

8^1/3 = (2^3)^1/3

= 2^3/3        [3/3 = 1]

= 2^1

= 2 which is a whole number.

Answer: B) 8^1/3

Hope this will helpful.

Thank you.

trasher [3.6K]4 years ago
4 0
8^1/3 8 is 2^3 so 8^1/3 = 2 The other expresssions don't give whole numbers.
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Answer:

(2)

Step-by-step explanation:

One property of a parallelogram is

• opposite angles are congruent, hence

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Using ∠L = ∠N, then

8x - 41 = 6x + 3 ( subtract 6x from both sides )

2x - 41 = 3 ( add 41 to both sides )

2x = 44 ( divide both sides by 2 )

x = 22

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3 years ago
PLEASE HELP For what value of the variable will the value of 2x+1 be 20 greater than 8x+5?
wlad13 [49]

It will be a negative.

for an example: -20 for x would mqke 2x + 1 into -39 and 8x + 5 into -155. that's 116 apart, so maybe -2(8) + 5 = -11

-2(2) + 1 = -3

but that's only 8 apart, so it'd be higher.

-4(2) + 1 = -7

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BOOM

Tadaaaa,

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RISE/RUN is an important rule...

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