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loris [4]
2 years ago
10

Find the inverse of the function y = x2 – 12

Mathematics
1 answer:
vivado [14]2 years ago
7 0

Answer: y=\sqrt{x+12}

Step-by-step explanation:

I hope you mean y = x² - 12 and not y = 2x - 12.

You switch the y and x variables:

x = y² - 12

And solve for y:

x + 12 = y²

y=\sqrt{x+12}

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a_sh-v [17]

Answer: A. 0.4899 B. 14

Step-by-step explanation:

If X = random variable

then, the standard deviation of the sampling distribution of X = \dfrac{\sigma}{\sqrt{n}}

A.

GIven: \sigma= 1.2, \n= 6

The standard deviation of the sampling distribution of X = \dfrac{1.2}{\sqrt{6}}=0.4899

B. Let n be the sample size,

0.325=\dfrac{1.2}{\sqrt{n}}\\\\\Rightarrow\ \sqrt{n}=\dfrac{1.2}{0.325}\\\\\Rightarrow\ \sqrt{n}=3.69230769231\\\\\Rightarrow\ n= (3.69230769231)^2=13.6331360947\approx 14

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3 0
2 years ago
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adell [148]
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8 0
2 years ago
Solve s = n/3 (b+H) for H Answer H=
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