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olya-2409 [2.1K]
3 years ago
11

Solve the system of equation by the addition method x-6y=19 and -x+2y =-31

SAT
1 answer:
Tomtit [17]3 years ago
7 0
X-6y=19
-x+2y=-31
________
0-4y= -12
-4y=-12
y= -12/-4
y=3
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Which use of media is most inappropriate for this scenario a speech honoring
romanna [79]

The only option that is inappropriate is; A: A video of the congressperson's response to a scandal.

<h3>What is the media to be used in the scenario?</h3>

From the complete question;

Topic is; A speech honoring a well-respected congressperson after his or her death

Audience: Members of Congress, friends and family of the congressperson, the general public.

Now, there are different means of media in communication. However in this case we see that the audience wants to listen to the topic speech honoring a well-respected congressperson after his or her death. Thus, the best medium for this would either be a graphic of his most famous quotes; A timeline of the congressperson's political career; A picture showing the congressperson with the U.S. president.

Thus, the only option that is inappropriate is A video of the congressperson's response to a scandal.

The missing options are;

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Read more about Media forms at; brainly.com/question/3653791

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2 years ago
The average age of a breed of dog is 19.5 years. if the distribution of their ages is normal and 20% of dogs are older than 22.6
viva [34]

The  standard deviation of the average age of a breed of dog  is said to be 3.69.

<h3>What is the standard deviation about?</h3>

Note that we take:

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Hence:

z = (x - mean) /SD is distributed N (0,1) - mean o standard deviation 1 (standard normal)

Since 20% of dogs are known to be older than 22.6 years:

So 22.6 years is said to be 80th percentile,

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Then one need to plug z, x which is  = 22.6

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Hence,

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SD = (22.6 - 19.5)/0.84

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Learn more about standard deviation from

brainly.com/question/475676

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How about we not die today TvT
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Lublibublib club libulhyvbuhyvbouhvhv huvbhjbljhvlhjfgvyulbkhjkm
Romashka-Z-Leto [24]

Answer:

Great sat question

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The type of decision that increases a nation's sphere of influence is called a (n) policy.
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