2 years ago

An expression is shown: 2x^2 - 16x list all the possible expressions below.

Mathematics

1 answer:

boyakko [2]2 years ago

7 0

Answer:

i hope this helps you :) ....

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HELP 276.5 divided by 7.9.

cestrela7 [59]

Answer:

Step-by-step explanation:

276.5 / 7.9 X 10 = 2765 /79 = 35

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3 years ago

Anybody got the answer to this

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4. (5/32), (5/128), (5/512)

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$\frac{1}{4} *80$
$\frac{80}{4}$
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4 years ago

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"Conservationists have despaired over destruction of tropical rain forest by logging, clearing, and burning." These words begin

krok68 [10]

Answer:

The answer is "(0.461 , 7.206)"

Step-by-step explanation:

In the given question some information is missing, that is data. so, the correct answer to this question can be defined as follows:

UnLogged:

$x_1=17.500\\s_1=3.529\\n_1=12$

Logged:

$x_2=13.667\\ s_2=4.500\\n_2=9\\$

formula of std error:

$\ std \ error =\sqrt{\frac{s_1^2}{n_1}+\frac{s_2^2}{n_2}}$

$=\sqrt{\frac{3.529^2}{12}+\frac{4.500^2}{9}}\\\\=\sqrt{\frac{3.529^2\times 3+4.500^2\times 4}{36}}\\\\=1.8133$

Point differential estimation = $x_1-x _2$

$= 17.500-13.667\\=3.833$

For 90 percent t= 1.860 Cl & 8 df

error of margin E = $t\times \ std \ error$

$= 1.860 \times 1.8133\\= 3.373$

Lower bound =mean difference -E=0.461

Upper bound = mean difference+ E=7.206

In the above 90% confidence interval were the population mean= (0.461 , 7.206)

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3 years ago