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Delicious77 [7]
3 years ago
11

Combine like terms to create an equivalent expression.-5.8c+4.2-3.1+1.4c​

Mathematics
1 answer:
ohaa [14]3 years ago
5 0

Answer: I got

-4.4c+1.1

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Explain why two variables must both be quantitative in order to find the correlation between them
Butoxors [25]

If the variables are not quantitative we cannot do the arithmetic required in the formulas for r.

<h3>What is a variable?</h3>
  • A variable in mathematics is a symbol and placeholder for a changing quantity or any mathematical object.
  • A variable can specifically represent a number, a vector, a matrix, a function, a function's argument, a set, or an element of a set.

Quantitative order:

  • Quantitative methods emphasize objective measurements and statistical, mathematical, or numerical analysis of data gathered through polls, questionnaires, and surveys, as well as by manipulating pre-existing statistical data using computational techniques.
  • Ordinal-level measurement data can be quantitative or qualitative.
  • They can be arranged in ranked order, but differences between entries are meaningless.
  • Measurement data at the interval level are quantitative.
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  • We can't do the arithmetic required in the r formulas if the variables aren't quantitative.

Therefore, if the variables are not quantitative we cannot do the arithmetic required in the formulas for r.

Know more about quantitative data here:

brainly.com/question/24492737

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4 0
1 year ago
Which expression is equivalent to (5x + 2) + (4.x - 3)?
Naddik [55]

Answer:

Step-by-step explanation:

3

3 0
3 years ago
Find the length of X in simplest radical form with a rational denominator
Darya [45]

Answer:

x = \sqrt 6

Step-by-step explanation:

Given

The attached triangle

Required

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Using the tangent formula:

tan\ 30 = \frac{\sqrt 2}{x}

Make x the subject

x = \frac{\sqrt 2}{tan\ 30}

x = \frac{\sqrt 2}{1/\sqrt 3}

x = \sqrt 2 * \sqrt 3

x = \sqrt 6

6 0
3 years ago
in this truss bridge,△ABC ~△XYZ.based on the given information,what is AB? A)7m , B)14m , C)21m , D)28m
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Answer:

i Belive the answer is going to be B

4 0
2 years ago
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What is the C of a circle that has a radius of 4.5
Jlenok [28]

Step-by-step explanation:

C = 2\pi \: r \\ = 2 \times 3.14 \times 4.5 \\  = 3.14 \times 9 \\  =28.26 \: units

5 0
3 years ago
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