Answered

Which of the following equations represents the greatest value of x?


Equation 1
Equation 2
Equation 3
Equation 4
x2 = 17
x2 = 26
x3 = 64
x3 = 27
Equation 1
Equation 2
Equation 3
Equation 4

Answer :

sam4040

Answer:

The greatest value of [tex]x[/tex] is in equation

(2), [tex]x=\sqrt{26}\approx5.09[/tex]

Step-by-step explanation:

Equation (1) :

[tex]x^2=17[/tex]

Take square root of both side

[tex]\sqrt{x^2}=\sqrt{17}\\\\(x^2)^{\frac{1}{2}}=\sqrt{17}\\\\x\approx4.12[/tex]

Equation (2) :

[tex]x^2=26[/tex]

Take square root of both side

[tex]\sqrt{x^2}=\sqrt{26}\\\\(x^2)^{\frac{1}{2}}=\sqrt{26}\\\\x\approx5.09[/tex]

Equation (3) :

[tex]x^3=64\\\\x^3=4\times4\times4\\\\x^3=4^3[/tex]

Take cube root both side

[tex]\sqrt[3]{x^3}=\sqrt[3]{4^3} \\\\(x^3)^{\frac{1}{3}}=(4^3)^{\frac{1}{3}}\\\\x=4[/tex]

Equation (4) :

[tex]x^3=27\\\\x^3=3\times3\times3\\\\x^3=3^3[/tex]

[tex]Take\ cube\ root\ both\ side\\\\(x^3)^{\frac{1}{3}}=(3^3)^{\frac{1}{3}}\\\\x=3[/tex]

marw2552

Answer:

Equation 2! (or B)

Step-by-step explanation:

[tex]\sqrt{17}[/tex] = 4.12

[tex]\sqrt{26}[/tex] = 5.10

we know [tex]\sqrt{26}[/tex] is larger than [tex]\sqrt{17}[/tex]

[tex]\sqrt[3]{64}[/tex] = 4 = 4 x 4 x 4

And we know this will have to be larger than [tex]\sqrt[3]{27}[/tex]

5.10 is greater than 4, so equation 2 is larger!

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