3 years ago

I need help fast what is twice the cube of a number in number form???

Mathematics

1 answer:

professor190 [17]3 years ago

3 0

I believe what you're looking for is : 2x^3

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What is the length of CD ? In this diagram ABC EDC ?<br> Please help !!!!

n200080 [17]

Answer:
CD = x = 4 units

Explanation:
We are given that the two triangles are similar. This means that we can set the similarity proportionality as follows:
$\frac{BC}{CD} = \frac{CA}{CE} = \frac{AB}{ED}$

W e have:
BC = 20 - x
AC = 20
CD = x
CE = 5

Substitute in the above proportionality and solve for x as follows:
$\frac{20-x}{x} = \frac{20}{5} = 4$

4x = 20 - x
5x = 20
x = 4

Based on he above:
CD = 4 units
BC = 20 - x = 20 - 4 = 16 units

Hope this helps :)

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goldenfox [79]

Answer:

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Step-by-step explanation:

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Multiplying or dividing two related quantities by the same number is called; what?

tamaranim1 [39]

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Help on this This question plz

mr Goodwill [35]

= -x^2 - (3x - 12x^2 + 7x ) - (2 - 2x - 2)
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Answer
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