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2 years ago

8

Clarence solved the equation 3x + 15 = 33 and showed the following work. Did he do the work correctly? 3x + 15 = 33 3x + 15 - 15

= 33 3x = 33 = x = 11 Which of the following is true? x is 11. x should be 6. x should be 16. x should be 99.

2 answers:

Tresset [83]2 years ago

4 0

The answer is "x should be 6"

posledela2 years ago

3 0

Answer:

x should be 6

Step-by-step explanation:

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Please answer this question

Vladimir [108]

Answer:

a = 3/2
b = -1/2

Step-by-step explanation:

$\dfrac{\sqrt{5}-1}{\sqrt{5}+1}=\dfrac{(\sqrt{5}-1)(\sqrt{5}-1)}{(\sqrt{5}+1)(\sqrt{5}-1)}\\\\=\dfrac{5-2\sqrt{5}+1}{5-1}=\dfrac{6-2\sqrt{5}}{4}\\\\=\dfrac{3}{2}-\dfrac{1}{2}\sqrt{5}$

Comparing this to the form a+b√5, we see that ...

a = 3/2

b = -1/2

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2 years ago