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babymother [125]
3 years ago
14

1. Refer to the equation 2x − 6y = 12. (a) Create a table of values for at least 4 points. Show your work.

Mathematics
1 answer:
Sergio039 [100]3 years ago
4 0
2x - 6y = 12

so we pick any number for x and then solve for y

lets say x = 0
2(0) - 6y = 12
-6y = 12
y = -12/6
y = -2....so when x = 0, y = -2....(0,-2) <== one point

lets say x = 1
2(1) - 6x = 12
2 - 6x = 12
-6x = 12 - 2
-6x = 10
x = -10/6
x = - 5/3...so when x = 1, y = -5/3....(1,-5/3) <== another point

Lets say x = 2
2(2) - 6y = 12
4 - 6y = 12
-6y = 12 - 4
-6y = 8
y = -8/6
y = - 4/3....so when x = 2, y = -4/3.....(2,-4/3) <== another point

lets say x = 3
2(3) - 6y = 12
6 - 6y = 12
-6y = 12 - 6
-6y = 6
y = -6/6
y = -1....so when x = 3, y = -1.....(3,-1) <== another point

now there is 4 points.
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WITCHER [35]

The cost of the brand less than 6 bags is less than 11.94

<h3>Functions and equations</h3>

If the cost y of a brand can be represented by the equation y=1.99x

where

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For a brand that costs less than 6 bags, we will substitute x = 6 into the function

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2 years ago
In a T-test, if your n=459, your DF is:<br><br> A. 459<br> B. 460<br> C. 458<br> D. A&amp;C
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Answer:

DF = 458

Step-by-step explanation:

In statistics, T-test have an extensive application. T-tests are used in hypothesis testing or inference about the population mean when the population standard deviation is not known. Nevertheless, they are used in making inference in paired samples or dependent samples t-test as well as independent samples.

The degrees of freedom, DF, is a characteristic of the student's t distribution which is used in T-tests. In a simple T-test;

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Given n is 459, DF = 459 - 1 = 458

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6 0
3 years ago
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<u>answer</u>:

sale price: $5

<u>explanation</u>:

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sale price is 80% off,

sale price: 100% - 80% = 20%

<u>solve</u>:

→ 20% * $25

→ $5

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