You simply plug in your domains, after all domain is pretty much your x. The outcome will be your range. In this case you get both positive and negative numbers, in other words all real numbers.
- Miriam
It is adding 4 every time.
7 is the first term.
To get the 31st term, add 30*4 to 7 (why?)
The 31st term is 7+30*4=127
The system of equations has the solution:
x = 111/42
y = 27/14
z = -15/6
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How to solve the system of linear equations?</h3>
We start with 3 linear equations:
2x+y-z=8
x+4y+z=7
-3x+2y-3z=21
To solve this, first we need to isolate one of the variables. I will isolate x on the second one:
x = 7 - 4y - z
Now we can replace that in the other two:
2*( 7 - 4y - z) + y - z = 8
-3*(7 - 4y - z) + 2y - 3z = 21
Now we need to isolate other variable, let's isolate y on the above one:
14 - 8y - 2z + y - z = 8
-7y - 3z = 8 - 14 = -6
z = (-6 + 7y)/-3 = 2 - (7/3)*y
Now we replace this on the last equation:
-21 + 12y -3z + 2y - 3z = 21
14y - 6z = 42
14y - 6*(2 - (7/3)*y) = 42
14y - 12 + 14y = 42
28y = 42 + 12 = 54
y = 54/28 = 27/14
Now that we know the value of y, we can find the value of z:
z = 2 - (7/3)*y = 2 - (7/3)*27/14 = 2 - 27/6 = -15/6
And the value of x:
x = 7 - 4y - z = 7 - 4*(27/14) + 15/6 = 7 - 48/7 + 15/6 = 111/42
So the solution is:
x = 111/42
y = 27/14
z = -15/6
If you want to learn more about systems of equations:
brainly.com/question/13729904
#SPJ1
Step-by-step explanation:
(180-x)-40=X
140 -x=X
140= 2x
x=140/2
x=70
the answer is 70 degree
Answer:
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<em><u>TAMA</u></em><em><u>!</u></em><em><u>!</u></em></h2><h3>
<em><u>RIGHT</u></em><em><u>!</u></em><em><u>!</u></em></h3>
Step-by-step explanation:
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<em><u>T</u></em><em><u>A</u></em><em><u>M</u></em><em><u>A</u></em><em><u>!</u></em><em><u>!</u></em></h2><h3>
<em><u>R</u></em><em><u>I</u></em><em><u>G</u></em><em><u>H</u></em><em><u>T</u></em><em><u>!</u></em><em><u>!</u></em></h3>