2 years ago

Evaluate 5 + (-4) + (-7) +2

Mathematics

2 answers:

kherson [118]2 years ago

6 0

Answer : -4
..................

Dennis_Churaev [7]2 years ago

3 0

Answer:

5+(-4)+(-7)+2

5-4-7+2

5-11+2

5+2-11

7-11

-4

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(a)

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(b)

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(c)

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(d)

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Step-by-step explanation:

(a)

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we can use property of exponent

$a^{-n}=\frac{1}{a^n}$

we get

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(b)

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we can use property of exponent

$a^{-n}=\frac{1}{a^n}$

we get

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$-5^{-3}=-\frac{1}{125}$ ........Answer

(c)

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we can use property of exponent

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we get

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(d)

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we can use property of exponent

$(a^{n})^m=a^{m\times n}$

we get

$(-5^{-3})^{0}=(-5)^{-3\times 0}$

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we can use property

$a^0=1$

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