Do you remember how to graph rational numbers on a number line? Review with a Quick Check.

2 answers:

8 0

The worst customer service and advertisements, literally. They are right on it to take our money but when it comes to attending customers they don't bother to fix the issue. I have emailed them twice regarding my refund, different days and times. I still haven’t heard back. Not only do they have bad customer service but they are false advertising on the ads. I have a screenshot of the ad that had mentioned a full my refund if you cancel B4 15 days which I did. I am still expecting my refund and will

not stop emailing them and writing these reviews in every site reviewing them until I get my full refund. I will be calling my bank and see what I can do since Brainly avoids their emails and pick which ones to respond to. They never process a question or a complain in their site if it’s bad for their reputation. They knew what they were doing not having any other contacting method other than the subscription email.

miv72 [106K]3 years ago

7 0

Answer:

r i think???

Step-by-step explanation:

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At Kirby Middle School, some students were surveyed to see which social media app they used the most. The results are shown belo

Murljashka [212]

Answer:

44%

Step-by-step explanation:

you add up all the numbers to get the total then divied the single number (eg. 8) by the total. It will then show up as a decimal so in order to get rid of the decimal you multiply by 100. ( eg. 8 ÷50=0.16 → 0.16×100= 16 → 16% )

5 0

3 years ago

solve the system of equations by finding the reduced row-echelon form of the augmented matrix for the system of equations. x-2y+

Alekssandra [29.7K]

Answer:

x = -5, y = -6, z = -3

Step-by-step explanation:

Given the system of three equations:

$\left\{\begin{array}{l}x-2y+3z=-2\\6x+2y+2z=-48\\x+4y+3z=-38\end{array}\right.$

Write the augmented matrix for the system of equations

$\left(\begin{array}{ccccc}1&-2&3&|&-2\\6&2&2&|&-48\\1&4&3&|&-38\end{array}\right)$

Find the reduced row-echelon form of the augmented matrix for the system of equations:

$\left(\begin{array}{ccccc}1&-2&3&|&-2\\6&2&2&|&-48\\1&4&3&|&-38\end{array}\right)\sim \left(\begin{array}{ccccc}1&-2&3&|&-2\\0&-14&16&|&36\\0&-6&0&|&36\end{array}\right)\sim \left(\begin{array}{ccccc}1&3&-2&|&-2\\0&16&-14&|&36\\0&0&-6&|&36\end{array}\right)$