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Black_prince [1.1K]
3 years ago
15

1/3b - 3 = 3 what is b

Mathematics
1 answer:
Sveta_85 [38]3 years ago
5 0

Answer:

b=18

Step-by-step explanation:

1/3b -3=3

1/3b-3+3=3+3

1/3b= 6

isolate b

1/3 *3 b= 6 *3

b=18

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Factor the polynomial function over the complex numbers. f(x)=x^3-2x^2+3x-6
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4 0
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Use substitution to determine which of the following values for y are in the solution set of the inequality:
aleksandrvk [35]

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Construct a 96% confidence interval if a sampling distribution has a mean of 20, a standard deviation of 5, and a size of 100.
MAXImum [283]

Using the t-distribution, the 96% confidence interval is given as follows:

(18.96, 21.04).

<h3>What is a t-distribution confidence interval?</h3>

The confidence interval is:

\overline{x} \pm t\frac{s}{\sqrt{n}}

In which:

  • \overline{x} is the sample mean.
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The critical value, using a t-distribution calculator, for a two-tailed 96% confidence interval, with 100 - 1 = 99 df, is t = 2.0812.

The parameters are given as follows:

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Hence the bounds of the interval are:

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\overline{x} + t\frac{s}{\sqrt{n}} = 20 + 2.0812\frac{5}{\sqrt{100}} = 21.04

More can be learned about the t-distribution at brainly.com/question/16162795

#SPJ1

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