Okay, for this one is will use substitution:
y=x+4
y-x=4
2y-2x=8
-2x+2y=8
+
2x+y=13
=
3y=21
y=7
x=3 is your final answer. Hope it help!
X^2-13x-48=0
The answer is (x+3)(x-16)
Hope this helps
The logarithmic function starts in quadrant 4 and curves up into quadrant 1 if that’s what you’re asking.
R = 5(CA - 0.3)
<span>Multiply everything in the parenthesis by 5.</span>
R = 5CA - 1.5
Add 1.5 to both sides
1.5 + R = 5CA
Divide 5A on both sides.
C = 1.5 + R / 5A
Hope this helps!