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hichkok12 [17]
3 years ago
5

I will give brainliest

Mathematics
2 answers:
bearhunter [10]3 years ago
8 0
I did this so you can give brainliest to the other person
Natasha_Volkova [10]3 years ago
3 0

Answer:

  • 225°
  • quadrant 3
  • reference angle of 45°

Step-by-step explanation:

585-360= 225

225° is in quad 3

reference angle for quad 3 is

225° - 180°

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Which matrix represents the system of equations shown below? 3x-5y=12 4x-2y=15
tatuchka [14]

Answer:

\left[\begin{array}{ccc}3&-5  &|12\\4&-2  &|15\\\end{array}\right]

Step-by-step explanation:

When making a matrix of two equations with the variables x and y, the result will be a matrix with three columns:

  • a column for the values of x in each equation
  • a column for the values of y in each equation
  • a column for the independent values of each equation

since our system of equations is:

3x-5y=12\\ 4x-2y=15

we can see that the value for x in the first equation is 3 and in the second equation is 4, thus the first column will have the numbers 3 and 4:

\left[\begin{array}{ccc}3&&\\4&&\\\end{array}\right]

Now for the values of y we hvae -5 in the first equation and -2 in the second equation, we update the matrix with another column with the values of -5 and -2:

\left[\begin{array}{ccc}3&-5&\\4&-2&\\\end{array}\right]

Finally, the last column is the independent values of each equation (or the results) in the first equation that number is 12 and in the second equation is 15, thus the matrix is:

\left[\begin{array}{ccc}3&-5&12\\4&-2&15\\\end{array}\right]

usually there is a line separating the columns for the values of x and y, and the independent values:

\left[\begin{array}{ccc}3&-5  &|12\\4&-2  &|15\\\end{array}\right]

this is the matrix of the system of equations

6 0
3 years ago
Need Help with these problems can so,e some explain and give me the answers.​
kotegsom [21]

Answer:

there you go all the answers

4 0
3 years ago
Question 5 of 44<br> What is the measure of BA (the minor arc) in the diagram below?
mina [271]

Answer:

The answer is 72° I believe

Step-by-step explanation:

4 0
3 years ago
Marcus changed jobs after college. His old salary was $48000 per year. Now his new salary is 37% more per year. What is his new
spayn [35]

Answer:

65,760

Step-by-step explanation:

move decimal over two places to make a percent a decimal so .37

then multiply that times the 48000 to get 17,760 and then add that to the original 48000 to get 65,760

8 0
2 years ago
PLEASE ANSWER ASAP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Roman55 [17]

Answer:

A

Step-by-step explanation:

if these are fractions than its A.

2x-4=2

4x-5=5/4

6 0
2 years ago
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