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abruzzese [7]
2 years ago
15

Solve the system of equations by substitution. x + y =  x + 7y = 8

Mathematics
2 answers:
Rudik [331]2 years ago
4 0

Answer:

ITS 1, AND 1. Just TOOK THE TEST

Step-by-step explanation:


Ugo [173]2 years ago
3 0
Its (1,1) because I just took the test
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3 years ago
A sample of students at a university took a test that diagnosed their learning styles as active or reflective and also as visual
anastassius [24]

Answer:

Kindly check explanation

Step-by-step explanation:

Given that :

Sample size, n = 39

Correlation Coefficient, r = 0.273

The hypothesis test to examine if there is a positive correlation :

H0 : ρ = 0

If there is a positive correlation, then ρ greater than 1

H0 : ρ > 1

The test statistic :

T = r / √(1 - r²)/(n - 2)

T = 0.273 / √(1 - 0.273²)/(39 - 2)

T = 0.273 / 0.1581541

T = 1.726

The Pvalue using a Pvalue calculator can be be obtained using df = n - 2, df = 39 - 2 = 37

The Pvalue = 0.0463

α= .10 and α= .05

At α= .10

Pvalue < α ; Hence, we reject H0 and conclude that a positive correlation exists

At α= 0.05 ;

Pvalue < α ; Hence, we reject H0 and conclude that a positive correlation exists

3 0
2 years ago
−x+10=−5<br><br> Please help and include step by step.
sergey [27]

Step by Step:

Step 1.) Subract 10 from both sides.

Step 2.) Divide each side by one



answer: x=15

3 0
3 years ago
Read 2 more answers
I'm stuck on another question 5 4/5 + (-3 2/7)
anyanavicka [17]

So that would be the same thing as 5 4/5 - 3 2/7

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For example, we can write 2 as 2/1, and 0.5 as 0.5/1. However, since that approach can be a little clumsy, we usually drop the one. That said, it's important to remember the one is there, especially when working with unit rates.

For instance, 8 miles/4 hours = 2 miles/hour. Notice again that, while we did not include the 1, we did include the unit 'hour' Miles per hour is a familiar expression, as are unit rates such as:

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4 0
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