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alex41 [277]
3 years ago
7

Xavier performs the elementary row operation represented by Ri - R, on matrix A.​

Mathematics
1 answer:
yaroslaw [1]3 years ago
5 0

Answer:

4   3   0

7  9/2 -6

Step-by-step explanation:

Just took the test

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find the equation for the line that passes through the point (4,-3), and that is perpendicular to the line with the equation y=
Grace [21]

Answer:

hi

Step-by-step explanation:

Answer

Slope between two given points (1,3) and (2,7) is

m=  

2−1

7−3

​  

=4

Then perpendicular slope is m  

1

​  

=  

4

−1

​  

 

The line equation with this slope is given by

y=  

4

−1

​  

x+c.......(1)

Now, the above line passes through the point (−4,−3)

⇒−3=  

4

−1

​  

×(−4)+c

⇒c=−4

Therefore required line is 4y+x+16=0 (Substitute  

′

c  

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 in (1) and simplify)

7 0
2 years ago
Se quieren llenar 100 botellas de agua con una capacidad de 1/4lt ¿cuantos litros de agua son necesarias?
Mrac [35]

Answer:

25

Step-by-step explanation:

Because 100 25+25+25+25 or 25/1/4

7 0
2 years ago
Please help with these two questions and give an accurate answer. I will mark u the brainiest. Sinking Rivers charges two hundre
Soloha48 [4]

Answer:

Step-by-step explanation:

First one is 200 dollars for insurance which will be the constant and 15 dollars an hour which means the equation will be;

C = 15h +200 (Sinking Rivers)

Second one is $30 an hour and $110 for insurance which is the constant so he equation is;

C = 30h + 110 (Floating Down The Stream)

5 0
3 years ago
2/6 +36 Whats the answer ?​
777dan777 [17]

36 2/6

do I have to explain???

4 0
2 years ago
Read 2 more answers
ill decides to move her fish from a 20 gallon aquarium to a 50 gallon aquarium. She added 3 tablespoons of salt to her old aquar
klemol [59]

In the old aquarium, 3 tablespoons of salt were used for 20 gallons. That's a conversion ratio of

\dfrac{3\,\rm tbsp}{20\,\rm{gal}}=0.15\,\dfrac{\rm tbsp}{\rm gal}

That is, for every gallon of water in the aquarium, there was 0.15 tbsp of salt. So a 50 gallon aquarium, Ill should add

(50\,\rm{gal})\left(0.15\,\dfrac{\rm tbsp}{\rm gal}\right)=7.5\,\rm{tbsp}

to maintain the salinity.

3 0
2 years ago
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