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3 years ago

Which word set completes the following analogy?

English

1 answer:

Marina CMI [18]3 years ago

3 0

Death : life

peace and war are opposites, and death and life are also opposites

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Given the system of linear equations. Choose all of the options that could be used to solve the system using addition

myrzilka [38]

<h2>Hello!</h2>

The answer is:

The only operations that could be used to solve the system using addition are the first and the third operation.

To solve the problem, we need to check and discard each of the given option to see if the operations works to solve the system using addition, so, trying the given options.

The system of equation is:

$x+y=7\\12x+y=5$

We can see that the only way to solve the system using addition, is multiplying the first or the second equation by -1, so, we can eliminate the variable "y", let's prove that:

- First operation: Multiplying<u> the first equation</u> by -1 and add the equations together,

$x+y=7\\12x+y=5$

$x*(-1)+y*(-1)=7*(-1)\\12x+y=5$

$-x+-y=-7\\12x+y=5$

Adding the equations, we have:

$12x-x+y-y=5-7$

$11x+=5-7$

$11x+=-2$

$x=-\frac{2}{11}$

We can see that we can solve the problem using the first operation the operation.

- Third operation: Multiplying <u>the second equation</u> by -1 and add the equations together,

$x+y=7\\12x+y=5$

$x+y=7\\12x*(-1)+y*(-1)=5*(-1)$

$x+y=7\\-12x+-y=-5$

Adding the equations we have:

$-12x+x+y-y=-5+7$

$-11x=2$

$x=-\frac{2}{11}$

We can see that we can solve the problem using the third operation.

Also, we can see that in both equations the variable "y" has the same coefficient, the only operations that could work to solve the system using addition are the first and the third operation.

Have a nice day!

8 0

3 years ago

Can someone give me more than one metaphor and simile about homework and good and bad things about it

PolarNik [594]

Simile- Homework is to school, as money is to work.
Metaphor- You must do your homework before you can get a job.

5 0

3 years ago

The first area of the brain affected by alcohol is the area that controls

vazorg [7]

Answer: Motor Functions and/or the Hippocampus

7 0

3 years ago

Read 2 more answers

Consider the structure of the last 2 paragraphs in

qwelly [4]

Consider the structure of the last 2 paragraphs in
the text. What implicit, or unspoken, conclusion
does the article make?
A Even though the controversial ad was pulled, it
nevertheless contributed greatly to Johnson's
landslide victory
B. With the controversial ad pulled, people soon
forgot about Goldwater and voted for Johnson
instead.
C People still talked about the Daisy Girl Ad after
it was pulled, contributing free publicity to
Johnson's campaign.
D People were shocked by the ad, demanded it be
pulled, and voted for Goldwater instead.

5 0

3 years ago

Which sentence is punctuated correctly? My father loved talking about history, particularly: the Civil War, the Cold War, and th

RUDIKE [14]

The correct answer is - When studying mythology, I learned about several gods and goddesses: Zeus, Apollo, Aphrodite, Hermes, and Hercules.

This is the only sentence which is punctuated correctly because the first part (before the list) ends abruptly; it is obvious that something needs to be placed there. In this case, that is a colon.

The other sentences have leading words (particularly, such as, were) that don't require a colon after them.

5 0

3 years ago

Read 2 more answers