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OLga [1]
3 years ago
14

3x + y = -2 x = 2 - y​

Mathematics
1 answer:
andrezito [222]3 years ago
5 0

Answer:

y = 4 \\ x =  - 2

Step-by-step explanation:

3(2 - y) + y =  - 2 \\ 6 - 2y =  - 2 \\ 2y = 8 \\ y = 4 \\  \\ x = 2 - 4 \\ x =  - 2

I hope that uesful for u :)

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NNADVOKAT [17]
Can you show the full picture
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3 years ago
PLZ ANSWER !!!!!!
erastova [34]

Answer:

289.877 ft

Step-by-step explanation:

You can draw the eagle and mouse by using a right triangle. You know that the height of the triangle will be 280 feet and the distance between eagle and mouse should be the hypotenuse. Since we know the angle and one side of the triangle, we can use trignometry (cosine(angle)=adjacent/hypotenuse). Plug in your values and solve for the hypotenuse.

5 0
3 years ago
What is the standard deviation of a sampling distribution called?
GarryVolchara [31]

Answer: Standard error.

Step-by-step explanation:

If the population is normally distributed , then the standard deviation of a sampling distribution of the sample mean [tex]\overline{x}[/tex] is known as standard error which depends on population standard deviation (\sigma) and the sample size (n).

\sigma_x=\dfrac{\sigma}{\sqrt{n}}

It measure the variability in the sample statistics that happens by chance.

Thus, the standard deviation of a sampling distribution is called the <u>standard error</u>.

8 0
3 years ago
HELP!!!<br> Evaluate the function for x = 2 <br> f(x)=7x-5<br> ISTG I WILL MARK BRAINLIEST!!!!
Tpy6a [65]

Answer:

9

Step-by-step explanation:

All you have to do is plug x = 2 into the equation so:

7 * 2 - 5\\14 - 5\\9

3 0
3 years ago
Read 2 more answers
What is the first step in simplifying the expression ( 2-3 multiplied by 4 +5) to te power of 2
dlinn [17]
You can do left to right because it is in parentheses
7 0
3 years ago
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