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yuradex [85]
3 years ago
5

Select all of the following statements that are true. All real numbers are natural numbers. All whole numbers are integers. All

integers are whole numbers. All natural numbers are rational numbers. All irrational numbers are dense.
Mathematics
2 answers:
horsena [70]3 years ago
7 0

Answer:

All whole numbers are integers. AND All natural numbers are rational numbers.

Step-by-step explanation:

Sidana [21]3 years ago
6 0

Answer:

The answer is D and E

Step-by-step explanation:

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A coat that usually costs $123 is marked 1/3 off.What is the sale price of the coat. Round to the nearest dollar
Brut [27]

Answer:

$82

Step-by-step explanation:

If the coat is 1/3 off then you pay 2/3 of the price. To find a sale price, multiply the cost by 2/3.

123(2/3) = 246/3 = 82

7 0
3 years ago
Suppose the line of best fit is being found for some points that have an r-value of 0.769. If the standard deviation of the x-co
jeyben [28]

r value i.e Correlation between x value and y value = 0.769

A_{x}=Standard deviation of the x-coordinate = 5.508

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Slope of line is given by formula

If slope of line is m, then

m = r\times \frac{ A_{x}}{A _{y}}

m= 0.769 \times \frac{k}{5.508}

Substitute the value of k, i.e Standard deviation of the y-coordinate and then you can get the slope of line to three decimal places.

7 0
3 years ago
On a piece of paper, show how to find the slope between these two points: (-1,5) and (3,13). Show all of your work and simplify
dybincka [34]
Use the formula m = y2 - y1
————
x2 - x1
(-1 is x1, 5 is y1) (3 is x2, 13 is y2)
13 - 5 8
——— = — = 2
3 - (-1) 4

2 is the slope
6 0
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Write as a single fraction in its simplest form.
yaroslaw [1]

\dfrac{4}{3x-5} + \dfrac{x+2}{x-1}\\\\\\=\dfrac{4(x-1) + (x+2)(3x-5)}{(3x-5)(x-1)}\\\\\\=\dfrac{4x-4 + 3x^2 -5x +6x -10}{(3x-5)(x-1)}\\\\\\=\dfrac{3x^2 +5x-14}{(3x-5)(x-1)}

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2 years ago
What is the sguare root of 54
riadik2000 [5.3K]
Sq root (54) =
sq root (9*5) =
3 * sq root (5)

8 0
3 years ago
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