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kozerog [31]
3 years ago
10

Is (-3,11) a solution to the system of equation shown below.

Mathematics
1 answer:
natita [175]3 years ago
8 0
No, when you substitute it into the first equation for x and y it does not equal 36 this it's not a solution

(-3)-(3)(11)=36
-3-33=36
-36 =/ 36
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José has 3 brown socks, 5 blue socks, and 6 black socks
lukranit [14]

Answer:

independent

Step-by-step explanation:

, it has no effect on the number of red socks  so thewhen he draws out a sock the  event is not affected by the draw a blue sock or the bla ck sock or the brown sock

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2 years ago
david is 8 years older than stephen and 2 years younger than Graham. if Neil is 7 years younger than Graham, how much older than
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3 years ago
Simplify (x^2y)^3. <br> 1)X^2y^3<br> 2)x^5y^3<br> 3)x^6y^3
dsp73

Answer:

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Step-by-step explanation:

3 0
3 years ago
The number of years of education of self-employed individuals in the united states has a population mean of 13.6 years and a pop
muminat

Answer:

0.3 years

Step-by-step explanation:

With problems like these, I always like to start by breaking down the information into smaller pieces.

μ = 13.6

σ = 3.0

Survey of 100 self-employed people

(random variable) X = # of years of education

So now we have some notation, where μ represents population mean and σ represents population standard deviation. Hopefully, you already know that the sample mean of x-bar is the same as the population mean, so x-bar = 13.6. Now, the question asks us what the standard deviation is. Since the sample here is random, we can use the Central Limit Theorem, which allows us to guess that a distribution will be approximately normal for large sample sizes (that is, n ≥ 30). In this case, our sample size is 100, so that is satisfied. We're also told our sample is random, so we're good there, too. Now all we have to do is plug some stuff in.

The Central Limit Theorem says that for large values of n, x-bar follows an approximately normal distribution with sample mean = μ and sample standard deviation = σ/√n. So, with that info, all we need to do to find the standard deviation of x-bar is to plug our σ and n into the above formula.

σ(x-bar) = σ/√n

σ(x-bar) = 3.0/√100

σ(x-bar) = 0.3

So your answer here is .3 years.

7 0
3 years ago
I dont understand help me please <br>​
ira [324]
The answers are A and F.
You can tell by looking at the slopes and seeing that they've been flipped and one is positive while the other is negative.
4 0
3 years ago
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