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Natalija [7]
3 years ago
13

Determine for each number whether it is a rational or irrational number.

Mathematics
1 answer:
zalisa [80]3 years ago
3 0
1. Rational
2. Irrational
3. Rational
4. Rational
You might be interested in
Help please thank you
butalik [34]
A - 2x^2 + 2x - 2

To find this, set up the equation:

(-x^2 + 6x - 1) + ( 3x^2 - 4x - 1)

With this, you need to combine like terms while taking into consideration the addition sign.

-x^2 + 3x^2 = 2x^2
6x + - 4x = 2x
- 1 + - 1 = - 2

Hope this helps!




7 0
3 years ago
What is the standard deviation of the following data set rounded to the nearest tenth 3,17,18,15,12,21,9
Alenkinab [10]
I think that it is c or d but correct me if i am wrong
4 0
3 years ago
Read 2 more answers
What would the value of x be
nlexa [21]

Answer:

65°

Step-by-step explanation:

The sum of the interior angles of a quadrilateral is 360 degrees.

65+115+115=295

360-295=65

Answer: 65°

8 0
3 years ago
Read 2 more answers
A window is in the shape of a kite. caleb wants to apply a layer of plastic film on the top half of the window so that the glass
vazorg [7]

The dimensions of the layer of film he will apply to the window is 18 inches in width and 7 inches in height.

<h3>What are the dimensions of the layer of film?</h3>

A kite is a four sided shape that can be divided into two pairs of equal-length sides that are adjacent to each other.

The dimensions of the upper part:

  • Width = 18 inches
  • Length = 14 inches / 2 = 7 inches

Please find attached the complete question. To learn more about kites, please check: brainly.com/question/2918354

#SPJ4

3 0
2 years ago
Researchers want to determine whether or not there is a difference in systolic blood pressure based on how many hours a person e
VARVARA [1.3K]

Answer:

(1) The between groups degrees of freedom is 2.

(2) TRUE.

(3) The correct option is (a).

Step-by-step explanation:

(1)

The between groups degrees of freedom for the study is:

\text{df}_{B}=k-1\\=3-1\\=2

Thus, the between groups degrees of freedom is 2.

(2)

The hypothesis for he one-way ANOVA is:

<em>H</em>₀: All the means are equal.

<em>Hₐ</em>: At least one of the mean is not equal.

The output of the ANOVA test is attached below.

The <em>p</em>-value of the test is 0.00005.

<em>p</em>-value = 0.00005 < <em>α</em> = 0.05

Thus, the result is statistically significant.

The statement is TRUE.

(3)

As the <em>p</em>-value of the test is less than the significance level, the researcher should make the decision to reject the null hypothesis.

The correct option is (a).

6 0
3 years ago
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