1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
weeeeeb [17]
3 years ago
14

Can anyone help with this please !!!!

Mathematics
1 answer:
makvit [3.9K]3 years ago
6 0

Answer:

"Add equations A and B to eliminate y. Add equations A and C to eliminate y".

Step-by-step explanation:

Let be the following system of linear equations:

4\cdot x + 4\cdot y + z = 24 (1)

2\cdot x - 4\cdot y +z = 0 (2)

5\cdot x - 4\cdot y - 5\cdot z = 12 (3)

1) We eliminate y by adding (1) and (2):

(4\cdot x + 2\cdot x) +(4\cdot y - 4\cdot y) + (z + z) = 24 + 0

6\cdot x +2\cdot z = 24 (4)

2) We eliminate y by adding (1) and (3):

(4\cdot x + 5\cdot x) +(4\cdot y - 4\cdot y) +(z -5\cdot z) = (24 + 12)

9\cdot x -4\cdot z = 36 (5)

Hence, the correct answer is "Add equations A and B to eliminate y. Add equations A and C to eliminate y".

You might be interested in
Keshav has $250 in his account. This is $75 more than his brother Nalin has in his account. Write and solve an addition equation
serious [3.7K]
175 250-75 that would be the answer
5 0
3 years ago
Read 2 more answers
List and explain the elements that make up the structure of a fugue, then list and explain at least four techniques Bach utilize
mina [271]

Answer:

The fugue begins with an exposure. After the exhibition the alternative composer between episodes and presentations of the subject. In each fugue this scheme is developed in a varied way according to the invention and the needs of the composer.

Step-by-step explanation:

The elements that make up a musical fugue are:

The exhibition: It begins with one of the voices presenting the subject (name given to the theme on which a fugue is based). A second voice continues with the answer. The other voices continue alternately between subjects and responses. The exhibition concludes once all the voices have presented the subject or the answer.

While the second voice presents the answer the first voice makes a counterpoint to this answer. Similarly, when the third voice enters, the first two accompany it with other counterpoints. This counterpoint can be called counterpoint or free counterpoint. It is called a countersubject when it appears next to the answer. When the counterpoint is different in each presentation it is known as a free counterpoint.

The final section of the fugue begins when the subject returns to the initial hue of the fugue and from here to the end of the work. This ending is usually formed in several measures added to the main structure. This conclusion is the coda.

In the first place, he must remember that Bach was a self-taught, he was trained alone and specifically by the study of music itself, by the observation and analysis of other people's compositions, very often of poor significance in front of his own and that he copied, however, of his handwriting. The pedagogical activity of Bach and what he taught: "We must make the fugue of the subject", this means that each subject requires his fugue. Bach added another teaching, "voices must not enter without having something to say, or call before they have said everything they have to say," which means that they have voices should not speak for speaking and that they have no obligation to be always present.

In conclusion, Bach did not give any norm about the fugue, not least in terms of the genre of procedures for cases where this kind of compositions could be applied, leaving subjects free to perform this type of music.

6 0
3 years ago
Simplify to create an equivalent expression. 2(−n−3)−7(5+2n)
scoray [572]
First you distribute...
-2n - 6 - 35 - 14n
Then you simplify...
-16n - 41
Done
5 0
3 years ago
Are the triangles shown below similar? Please explain why or why not.
erica [24]

Yes

Angles r congruent

5 0
3 years ago
Read 2 more answers
Jevon arrives home from school at 3:10.it takes him 15 minutes to eat a snack 1/2 hour to complete his homework 7 minutes to cha
zysi [14]
Arrives at home 3:10pm
snack 15min
homework 30min
change/pack 7min
bike ride 18min
arrives to soccer practice 4:20pm
6 0
3 years ago
Other questions:
  • 8 pencils for 3.44 what is the unit rate dor one pencil
    14·1 answer
  • 7. There are 4 times as many boys
    8·1 answer
  • Given the two points (0,4) and (2, 6), what would the numerator of the equation for slope be?
    10·2 answers
  • What is the base of expression 9^12
    13·1 answer
  • 65 % express each percent as a fraction or mixed number
    15·1 answer
  • We saw that a differential equation describing the velocity v of a falling mass subject to air resistance proportional to the in
    10·1 answer
  • Simplify (p squared) to the power of 5
    5·2 answers
  • HELP ME PLEASE I'VE BEEN STARING AT THIS QUESTION FOR SO LONG ​
    11·1 answer
  • An 8-pound bag of dog food costs $25.60. A 12-pound bag of dog food costs $36.60. What is the difference in unit prices?
    11·1 answer
  • Gabe can travel 40 miles on his motorbike in the same time it takes Dena to travel 15 miles on her bicycle. If Dena rides her bi
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!