PLZ HELP MEEEEEEEEEEEE!!!!!Solve the system of equation y =x −2y =4x+1

Mathematics

2 answers:

Tresset [83]3 years ago

8 0

The answer is -1,-3

Nadya [2.5K]3 years ago

6 0

Answer:

The solution is (-1,-3).

Step-by-step explanation:

I graphed the equations below to find the point where they intersect.

If this answer is correct, please make me Brainliest!

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In a standard normal distribution, what z value corresponds to 17% of the data between the mean and the z value?

hjlf

You're looking for a value $z$ such that

$\mathbb P(0$

Because the distribution is symmetric, the value of $z$ in either case will be the same.

Now, because the distribution is continuous, you have that

$0.17=\mathbb P(0$

The mean for the standard normal distribution is $0$ , and because the distribution is symmetric about its mean, it follows that $\mathbb P(Z$ .

$0.17=\mathbb P(Z$

You can consult a $z$ score table to find the corresponding score for this probability. It turns out to be $z\approx0.4399$ .