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Fittoniya [83]
2 years ago
14

The verticies of a triangle are formed by the intersections of 3 lines: y=x x=6 y= -1/3x +4 (graph it please. also it's due in l

ike 15 minutes so please hurry)
Mathematics
1 answer:
Tatiana [17]2 years ago
6 0

Would appreciate brainly <3

Download pptx
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Y = −3x <br> x + y = −4<br> Solution system
Verizon [17]

Answer:

Step-by-step explanation:

Y = - 3x. Equation 1

x + y = - 4 equation 2

Putting value of y

x + (-3x) = - 4

x - 3x = - 4

-2x = - 4

x = - 4/-2 = 2

Putting value of x in the equation 1

Y = - 3(2)

Y = - 6

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2 years ago
Algebra 2 Question, tagged in the link
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The answer to the question

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-½(x + 1¼) = - 3 + ¼x <br> Solve for x
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Answer:

x = (23 + √ 497 / 8) ,  (23 − √ 497  /8)

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Step-by-step explanation:

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3 years ago
What is the solution to 2x+10y=-14 and x+5y=-7 answer using elimination with steps
VikaD [51]

Answer:

ty for the free points

Step-by-step explanation:

sognriogifninbfiodne0irnfdnre0gindfinbh0ibndf0ienb0idfn0ihndfibnce0binfkdbnd-indfpibne0tbdnbn-ebntenipdfptendfpiebdfnprfsrpgrrnip

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2 years ago
In a random sample of 26 residents of the state of Montana, the mean waste recycled per person per day was 2.8 pounds with a sta
Rainbow [258]

Answer:

The critical value that should be used in constructing the confidence interval is T = 1.316.

The 80% confidence interval for the mean waste recycled per person per day for the population of Montana is between 2.741 pounds and 2.859 pounds.

Step-by-step explanation:

We have the standard deviation for the sample, which means that the t-distribution is used to solve this question.

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 26 - 1 = 25

80% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 25 degrees of freedom(y-axis) and a confidence level of 1 - \frac{1 - 0.8}{2} = 0.9. So we have T = 1.316

The critical value that should be used in constructing the confidence interval is T = 1.316.

The margin of error is:

M = T\frac{s}{\sqrt{n}} = 1.316\frac{0.23}{\sqrt{26}} = 0.059

In which s is the standard deviation of the sample and n is the size of the sample.

The lower end of the interval is the sample mean subtracted by M. So it is 2.8 - 0.059 = 2.741 pounds

The upper end of the interval is the sample mean added to M. So it is 2.8 + 0.059 = 2.859 pounds.

The 80% confidence interval for the mean waste recycled per person per day for the population of Montana is between 2.741 pounds and 2.859 pounds.

4 0
2 years ago
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