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AURORKA [14]
4 years ago
8

Can somebody help me with this question please

Mathematics
1 answer:
e-lub [12.9K]4 years ago
6 0
3-4^2+6/2
we use PEMDAS
since there’s no parentheses we go to exponents
3-16+6/2
Next would be multiplication but there’s nothing to multiply so we go to division
3-16+3
Then we add
3-19
The last and final step is subtraction
-16
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One year, the population of a city was 322,000. Several years later it was 273,700 find the percent decrease
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Answer:

15% decrease

Step-by-step explanation:

First - 322,000

Years later - 273,700

Therefore, (322000 - 273700)/322000 = 0.15

0.15 * 100 = 15%

Mark me brainliest :))

7 0
3 years ago
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3 years ago
Help me find the answers for number problem 3 please
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x + 2y = 5 /* (-1)

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__________

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_______________

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4 0
3 years ago
Yeah....I have no idea. I tried and apparently I got two wrong answers. ​
Karo-lina-s [1.5K]

Answer:

Step-by-step explanation:

(11,13)  (8,18)

slope = y₂ - y₁/x₂-x₁

= 18- 13 / 8-11

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4 0
3 years ago
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For which data set is a linear regression most reasonable?
Oxana [17]

Answer:

The correct option is;

A. A set of nine data pairs with a correlation coefficient r = -0.4

Step-by-step explanation:

In statistical analysis, it is important to make use of an adequate sample size in order to arrive at a valid result. An analysis with a very small sample size can provide misleading results

When performing regression analysis it is generally accepted by researchers that each variable should have at least 10 observations.

Therefore, the data set having nine data pairs with a negative correlation of -0.4 will provide the most valid result that can then be used for generalization about the larger statistical population.

6 0
3 years ago
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