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2 years ago

X − y = 4 y − 8 = -x At which point do the given equations intersect each other?

Mathematics

1 answer:

Natali5045456 [20]2 years ago

3 0

Answer:

(6,2)

Step-by-step explanation:

Graph is below

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Answer:

Step-by-step explanation:

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3 years ago

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Step-by-step explanation:

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3 years ago

HELP THIS IS DUE TOMMAROW Can 1 1/4 be written as a percent. Explain?

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Step-by-step explanation:

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3 years ago

Round 8.36 to the nearest one decimal place

BartSMP [9]

8.4 because 6 would round up to 10 and 10+30 =40 for 8.40 or just 8.4

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3 years ago

The grade point averages (GPA) for 12 randomly selected college students are shown on the right. Complete parts (a) through (c)

Ilya [14]

Answer:

$\bar X =\frac{2.3+3.1+2.8+1.7+0.9+4+2.1+1.2+3.6+0.2+2.4+3.2}{12}=2.29$

$s=1.09$

Step-by-step explanation:

For this case we have the following data given:

2.3 3.1 2.8

1.7 0.9 4.0

2.1 1.2 3.6

0.2 2.4 3.2

Since the data are assumedn normally distributed we can find the standard deviation with the following formula:

$\sigma =\sqrt{\frac{\sum_{i=1}^n (X_i -\bar X)^2}{n}}$

And we need to find the mean first with the following formula:

$\bar X = \frac{\sum_{i=1}^n X_i}{n}$

And replacing we got:

$\bar X =\frac{2.3+3.1+2.8+1.7+0.9+4+2.1+1.2+3.6+0.2+2.4+3.2}{12}=2.29$

And then we can calculate the deviation and we got:

$s=1.09$

7 0

3 years ago

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