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qaws [65]
4 years ago
12

What will be the equation to show the relationship between 7 meters and 0.007 kilometer.

Mathematics
2 answers:
Mila [183]4 years ago
7 0

Answer:

x\text{ meter }=0.001x\text{ kilometer}

Step-by-step explanation:

To find : What will be the equation to show the relationship between 7 meters and 0.007 kilometer?

Solution :

We know that,

1\text{ kilometer }=1000\text{ meter }

i.e. 1\text{ meter }=0.001\text{ kilometer}

So, x\text{ meter }=0.001x\text{ kilometer}

In 7 meter the kilometer is

7\text{ meter }=0.001\times 7\text{ kilometer}

7\text{ meter }=0.007\text{ kilometer}

So, The equation showing relationship between them is

x\text{ meter }=0.001x\text{ kilometer}

weqwewe [10]4 years ago
3 0
7 meter = 0.007 km they are equal

1 meter = 0.001 km 

1 km = 1000 m
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Answer:

x =  4

x = -4

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Step-by-step explanation:

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We do factorization of x^2 - 16

(x^2-16) = (x+4)(x-4)

(x+4)(x-4)(x^2+49) = 0

We require that any term in the multiplication to be zero to fulfil the requirement

so:

if x + 4 = 0 then (x+4)(x-4)(x^2+49) = 0

x = -4

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if (x^2+49) = 0 then (x+4)(x-4)(x^2+49) = 0

x^2 = -49

we have two roots:

If your course has already worked with complex number and the root of -1 then:

7i and -7i are solution as well

because 7i will be: 7^2 \sqrt{-1} ^2= 49 (-1) = -49\\

and the same reasoning for -7i: (-7)^2 \sqrt{-1} ^2= 49 (-1) = -49

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Step-by-step explanation:

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3 years ago
What is the value of x?​
alina1380 [7]

Answer:

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Step-by-step explanation:

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The sides are in proportions:

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