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leva [86]
2 years ago
6

Determine the solution for the following equation:

%3D64" id="TexFormula1" title="(8x-8)^{\frac{3}{2} }=64" alt="(8x-8)^{\frac{3}{2} }=64" align="absmiddle" class="latex-formula">
a - x=3
b - x=5
c - 13
d - 65
Mathematics
1 answer:
adell [148]2 years ago
8 0

Answer:

\text{A. }x=3

Step-by-step explanation:

Recall the exponent property a^{b^c}=a^{(b\cdot c)}. Therefore, we can square both sides of the equation to get rid of the fraction in the exponent:

((8x-8)^{\frac{3}{2}})^2=64^2,\\(8x-8)^{\frac{3}{2}\cdot2}=64^2,\\(8x-8)^3=4096

Take the cube root of both sides:

8x-8=16

Add 8 to both sides:

8x=24

Divide both sides by 8 to isolate x:

x=\frac{24}{8}=\boxed{3}

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To solve this problem, let us first assign some variables. Let us say that:

x = pigs

y = chickens

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From the problem statement, we can formulate the following equations:

1. y + z = 30                                         ---> only chicken and ducks have feathers

2. 4 x + 2 y + 2 z = 120                      ---> pig has 4 feet, while chicken and duck has 2 each

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Rewriting equation 1 in terms of y:

y = 30 – z

Plugging this in equation 2:

4 x + 2 (30 – z) + 2 z = 120

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4 x = 60

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2 years ago
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Step-by-step explanation:

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2 years ago
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Step-by-step explanation:

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