Answer:
Step-by-step explanation:
1.

c+9=±8
either c=8-9=-1
c=-8-9=-17
so c=-1,-17
D
2.
8x^2-3=2
8x^2=5


so A
3.

so D
or
Answer:
y = -5/6x + 3
Step-by-step explanation:
11 + 3x = −15 − 4x
U subtract 11 from both sides 11+3x-11=-15-4x-11
Refine3x=-4x-26
Add 4x to both sides
3x+4x=-4x-26+4x
Refine7x=-26
Divide both sides by 7
<span>7x/7 = -26/7</span>
Refinex= -26/7
Answer:
14, 42
Step-by-step explanation:
-7 is only a multiple of 7
-4 is only even
2 is only even
21 is only a multiple of 7
34 is only even
Zero. because every worker will be afraid of to be retiered