Answer: Hence, Option (6) and (8) are correct as their value is also "-8".
Step-by-step explanation:
Since we have given that

First we need to solve to get the value of 'x' :

Therefore, x=-8
Now, we will check all the options :
1) 4x+8=24

2) 9x+18=-24

3) 4x+12=-24

4) 18x+36/2=-24

5) 4x=-36

6) 4x=-32

7) x=-9
8) x=-8
Hence, Option (6) and (8) are correct as their value is also "-8".
Answer:
B
Step-by-step explanation:
-(x^2+4x-21)
If you were to factor this, it would be,
-(x+7)(x-3)
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Systems of equations having an infinite number of solutions are lines that do not meet or intersect. These line are parallel which they have the same slope but different y-intercepts. By graphing the equations and using the choices, we will see that all except 10 can be the answer.
Answer:
10 degrees
Step-by-step explanation:
Since a right angle is 90 degrees in total, to find the missing degree subtract 80 from 90.
90-80=10 degrees
<u><em>Hope this helps </em></u>
Can you pls give more information