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Aleks [24]
3 years ago
6

Is 5.787787778 a rational or irrational number explain

Mathematics
1 answer:
ryzh [129]3 years ago
4 0

Answer:

Irrational, because it is non-terminating and non-repeating!

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What is the end value of -(-31)?
Svet_ta [14]

It's +31.

if there's a minus next to a bracket you have to turn every operator the opposite inside that bracket

-(-31) = +31

4 0
3 years ago
What is the leading coefficient of the polynomial?
ANEK [815]

ANSWER

B) 15

EXPLANATION

The given polynomial is

23 {x}^{5}  + 12 {x}^{2}  + 19 { x }^{3}  + 15 {x}^{6}

We arrange this polynomial in ascending powers of x to obtain the standard form;

15 {x}^{6} + 23 {x}^{5}    + 19 { x }^{3} + 12 {x}^{2}

The degree of this polynomial is 6.

The coefficient of the leading term is 15

6 0
3 years ago
John earns $6.50 per hour. he worked 40.0 hours last week. what was the amount of his check?
Andrew [12]
John gains 6.50 an hour
There are a total of 40 hours
6.50 x 40 = 260
John has earned $260 for 40 hours last week.
6 0
3 years ago
Read 2 more answers
(10x2 + 99x – 5) ÷ (x + 10) =
Gennadij [26K]
The answer is 15+99x
______
x+10
5 0
3 years ago
Read 2 more answers
A.) find the test statistic
Arada [10]

Regarding the hypothesis tested in this problem, it is found that:

a) The test statistic is: t = 0.49.

b) The p-value is: 0.6297..

c) The null hypothesis is not rejected, as the p-value is greater than the significance level.

d) It appears that the students are legitimately good at estimating one minute, as the sample does not give enough evidence to reject the null hypothesis.

<h3>What is the test statistic?</h3>

The test statistic of the t-distribution is given by the equation presented as follows:

t = \frac{\overline{x} - \mu}{\frac{s}{\sqrt{n}}}

In which the variables of the equation are given as follows:

  • \overline{x} is the sample mean.
  • \mu is the value tested at the hypotheses.
  • s is the standard deviation of the sample.
  • n is the sample size.

The value tested at the hypothesis is:

\mu = 60

From the sample, using a calculator, the other parameters are given as follows:

\overline{x} = 62.47, s = 19.2, n = 15

Hence the test statistic is obtained as follows:

t = \frac{\overline{x} - \mu}{\frac{s}{\sqrt{n}}}

t = \frac{62.47 - 60}{\frac{19.2}{\sqrt{15}}}

t = 0.49.

<h3>What are the p-value and the conclusion?</h3>

The p-value is obtained using a t-distribution calculator, with a two-tailed test, as we are testing if the mean is different a value, in this case 60, with:

  • 15 - 1 = 14 df, as the number of degrees of freedom is one less than the sample size.
  • t = 0.49, as obtained above.

Hence the p-value is of 0.6297.

Since the p-value is greater than the significance level of 0.01, the null hypothesis is not rejected, attesting to the ability of the students to estimate one minute.

More can be learned about the test of an hypothesis at brainly.com/question/13873630

#SPJ1

5 0
1 year ago
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