Which point on the number line best represents √67?

Mathematics

1 answer:

Zepler [3.9K]2 years ago

4 0

Answer: C

Step-by-step explanation: The square root of 67 is 8.18

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Suppose that 5% of the time Todd attends a concert twice a month, 40% of the time he attends a concert once a month, and 55% of

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it’s the right answer anyways hope u pass all your classes thanks bye now purrr 1245/4849

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3 years ago

Find the percentages.

irga5000 [103]

Answer: 55% are girls,45% are boys, number of girls is 122% of the boys,number of boys is 81.8%

Step-by-step explanation: percentage of girls = number of girls ÷ total population × 100

= (198/360)× 100 = 55%

Number of boys = 360 -198 = 162

Percentage of boys = (162/360) × 100 = 45%

Percentage of girls to boys = (198/162) × 100 = 122%

Percentage of boys to girls = (162/198) × 100 = 81.8%

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3 years ago

irakobra [83]

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3 years ago

Which is the inverse of the function f(x) = x2 − 4?

Rudiy27

The function is not one-to-one function, hence the inverse doesn't exist for the whole domain of the function. But if we restrict the domain to $x\in(-\infty,0]$ or $x\in[0,\infty)$ , then we can give the inverse.

$f(x)=x^2-4\\\\y=x^2-4\\\\x^2=y+4\\\\x=\sqrt{y+4} \vee x=-\sqrt{y+4}\\\\f^{-1}(x)=\sqrt{x+4}\vee f^{-1}(x)=-\sqrt{x+4}$

So, when $D_{f(x)}:x\in(-\infty,0]$ , the inverse is $f^{-1}(x)=-\sqrt{x+4}$ and when $D_{f(x)}:x\in[0,\infty)$ , the inverse is $f^{-1}(x)=\sqrt{x+4}$ .

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iris [78.8K]

77288283838828383838

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2 years ago

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