Answer:
(2,7)
Step-by-step explanation:
When you plot this on a grapg, you can see that the two equations intersect at that point. BTW Desmos is not illegal :)
A + b = 8
a - b = -4
a = b - 4
(b - 4) + b = 8
2b - 4 = 8
2b = 12
b = 6
a + 6 = 8
a = 2
a = 2
b = 6
2 + 6 = 8
2 - 6 = -4
Answer: 5
Step-by-step explanation:
To find the inverse, interchange the variables and solve for
y
.
f
−
1
(
x
)
=
x
4
+
1
2
Answer:
47
Step-by-step explanation: make sure to divide correctly
Two angles are supplementary when they <span>add up to 180 degrees.
x = </span><span>smaller angle
</span>2x+3 =<span> larger angle
x + 2x + 3 = 180
3x = 180 - 3
3x = 177
x = 177/3
x = 59</span>° ← smaller angle
2x + 3 = 2*59 + 3 = 121° ← larger angle