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4 years ago

If (-3)^-5=1/x, what is the value x?

Mathematics

2 answers:

Makovka662 [10]4 years ago

7 0

$(-3)^{-5} = \frac{1}{x}, \frac{1}{(-3)^{5}} = \frac{1}{x} ,

(-3)^{5}=x, 

x= - 243$

horsena [70]4 years ago

5 0

Answer: -243

Step-by-step explanation:

correct on e d g e n u i t y!

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Answer:

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Butoxors [25]

Answer:

see below

Step-by-step explanation:

1) see attached image

2) bearings from A to B

Note: bearing is always clockwise from A and from North.

(i)

bearing 180° + 67°

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(ii)

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(iii)

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(iv)

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3) back bearing from each diagram on no. 2

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add 180 if the bearing is less than 180

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3 years ago

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3 years ago

Which polynomial correctly combines the like term and express the given polynomial in standard form

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Answer:

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Step-by-step explanation:

Given

$8mn^5 - 2m^6 + 5m^2n^4 - m^3n^3 + n^6 - 4m^6 + 9m^2n^4 - mn^5 - 4m^3n^3$

Required

Correctly combine the like terms

We have:

$8mn^5 - 2m^6 + 5m^2n^4 - m^3n^3 + n^6 - 4m^6 + 9m^2n^4 - mn^5 - 4m^3n^3$

Collect like terms (in decreasing degrees of m)

$- 2m^6 - 4m^6 - mn^5- m^3n^3 - 4m^3n^3+ 5m^2n^4 + 9m^2n^4 + 8mn^5 + n^6$

$-6m^6 - mn^5 - 5m^3n^3 + 14m^2n^4 + 8mn^5 + n^6$

So:

$8mn^5 - 2m^6 + 5m^2n^4 - m^3n^3 + n^6 - 4m^6 + 9m^2n^4 - mn^5 - 4m^3n^3 = -6m^6 - mn^5 - 5m^3n^3 + 14m^2n^4 + 8mn^5 + n^6$

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