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goldfiish [28.3K]
2 years ago
12

drag each number or expression to the correct location on the table. each number or expression can be used more than once, but n

ot all numbers or expressions will be used. complete the empty cells in the table by determining all terms, constants, and coefficients for both algebraic expressions.

Mathematics
1 answer:
alisha [4.7K]2 years ago
4 0

Answer:

For the first expression-

terms- 4a^2, -5a

constants- -3

coefficients- 4, -5

For the second expression-

terms- 7(-3x+5), 11y

constants- 7, 5

coefficients- -3, 11

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Answer:

(2, 22 )

Step-by-step explanation:

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7x + 8 = x + 20 ( subtract x from both sides )

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The data given below contain the state cigarette tax​ (in $) for all 20 regions of a country.
g100num [7]

Answer:

(a) \bar x= 1.583 -- Population Mean

(b) s = 1.032 --- Population standard deviation

(c) See Explanation

Step-by-step explanation:

Given:

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Solving (a): The population mean

This is calculated as:

\bar x = \frac{\sum x}{n}

\sum x = 1.36 + 1.70 + 2.50 + 0.45 + 1.18 + 0.64 + 3.46 + 0.57 + 2.00 + 0.80 + 1.60 +0.98 + 0.36 + 2.24 + 4.35 + 0.62 + 2.70 + 1.78 + 1.53 + 0.84

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So, we have:

\bar x= \frac{31.66}{20}

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\sum (x -\bar x)^2 = (1.36 - 1.583)^2 + (1.70 - 1.583)^2+ (2.50 - 1.583)^2+ (0.45 - 1.583)^2+ (1.18 - 1.583)^2+ (0.64 - 1.583)^2+ (3.46 - 1.583)^2+ (0.57 - 1.583)^2+ (2.00 - 1.583)^2+ (0.80 - 1.583)^2+ (1.60 - 1.583)^2+(0.98 - 1.583)^2+ (0.36 - 1.583)^2+ (2.24 - 1.583)^2+ (4.35 - 1.583)^2+ (0.62 - 1.583)^2+ (2.70 - 1.583)^2+ (1.78 - 1.583)^2+ (1.53 - 1.583)^2+ (0.84- 1.583)^2

\sum (x -\bar x)^2 = 21.29222

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s = \sqrt{\frac{21.2922}{20}

s = \sqrt{1.06461}

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Solving (c):

Population mean tells the average amount while the standard deviation represents the spread from the calculated mean

Option (4) is correct

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