10 Students were surveyed.

1 answer:

3 0

Answer:mode

Step-by-step explanation:5+4+9+9+3+75+1=mode

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Degger [83]

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Stolb23 [73]

Is there a picture to this

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grandymaker [24]

Step-by-step explanation:

$4 {x}^{2} - 5 = 75 \\ 4 {x}^{2} = 75 + 5 \\ 4 {x}^{2} = 80 \\ {x}^{2} = \frac{80}{4} \\ {x}^{2} = 20 \\ x = \pm \sqrt{20} \\ x = \pm 2 \sqrt{5}$

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