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nika2105 [10]
3 years ago
5

What adds to 12 but multiplies to 9

Mathematics
2 answers:
kotykmax [81]3 years ago
7 0
The numbers are irrational, so they can't be written exactly.
Rounded to the nearest thousandth, they are

       11.196
and
         0.804  .


11.196 + 0.804  =  12
11.196 x 0.804  =  9.002...
Nata [24]3 years ago
6 0
3x3=9 3+9=12 if thats what youre asking
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Cual numero es mayor q 9/5​
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Several years​ ago, 39​% of parents who had children in grades​ K-12 were satisfied with the quality of education the students r
BaLLatris [955]
<h2>Answer with explanation:</h2>

Let p be the population proportion  of parents who had children in grades​ K-12 were satisfied with the quality of education the students receive.

Given : Several years​ ago, 39​% of parents who had children in grades​ K-12 were satisfied with the quality of education the students receive.

Set hypothesis to test :

H_0: p=0.39\\\\H_a :p\neq0.39

Sample size : n= 1055

Sample proportion : \hat{p}=\dfrac{466}{1055}=0.441706161137\approx0.44

Critical value for 95% confidence : z_{\alpha/2}=1.96

Confidence interval : \hat{p}\pm z_{\alpha/2}\sqrt{\dfrac{p(1-p)}{n}}

0.44\pm (1.96)\sqrt{\dfrac{0.39(1-0.39)}{1055}}\\\\0.44\pm0.0299536805135\\\\0.44\pm0.03\\\\=(0.44-0.03, 0.44+0.03)\\\\=(0.41,\ 0.47)

Since , Confidence interval does not contain 0.39.

It means we reject the null hypothesis.

We conclude that 95​% confidence interval represents evidence that​ parents' attitudes toward the quality of education have changed.

8 0
3 years ago
HELPPPPPPPPPPPPP and please don't put the "link" i really need answers!!!
Roman55 [17]

Answer:

<u>The first option is </u>

  • A(x) = 10000(1.05)ˣ

<u>The second option is:</u>

  • B(0) = 1000
  • B(1) = 1100
  • The ratio is 1.1 and the zero term is 1000

<u>The equation for this option is:</u>

  • B(x) = 1000(1.1)ˣ

Now, which option is better?

It depends on the number of x. It is assumed the genie is offering money or similar reward.

For the values of x below 50 option A is better and option B is much better for x > 50.

See the graph in the attachment, where green line represents the option A and red line is option B.

7 0
3 years ago
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