for the first problem:
the equation is x+40=90 (degrees) because since there is a little square, that means that angle is 90 degrees. Since it has been split we can use algebra to solve it. x=50 degrees. They are complementary angles because the add up to 90 degrees.
second one: x= 180-62 degrees or x+62=180 degrees. Since this one is a straight line and all straight lines equal 180 degrees, we can use the same algebra logic and put in 62 degrees. x=118 degrees, and the angles are supplementary because they add up to 180 degrees.
hope this helped!
The answer is
4
x
2
−
8
x
4
x
2
-
8
x
Factor
4
x
4
x
out of
4
x
2
4
x
2
.
4
x
(
x
)
−
8
x
4
x
(
x
)
-
8
x
Factor
4
x
4
x
out of
−
8
x
-
8
x
.
4
x
(
x
)
+
4
x
(
−
2
)
4
x
(
x
)
+
4
x
(
-
2
)
Factor
4
x
4
x
out of
4
x
(
x
)
+
4
x
(
−
2
)
4
x
(
x
)
+
4
x
(
-
2
)
.
4
x
(
x
−
2
)
I tried my best to put them together
What is the question and answer options?
-2 <= 2x - 4 < 4
-2 + 4 <= 2x < 4 + 4
2 <= 2x < 8
2/2 <= x < 8/2
1 <= x < 4
