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Find Angle X, AB = CD
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Expression 15: "a" equals "m" squared plus 1 equals 1.1 0 5 5 7 2 8 0 9
a
=
m
2
2
+
1
equals
=
1.1 0 5 5 7 2 8 0 9
1
.
1
0
5
5
7
2
8
0
9
15
Expression 16: "b" equals negative 2 "C" Subscript, 1 , Baseline "m" squared equals negative 2.1 1 1 4 5 6 1 8
b
=
−
2
C
1
m
2
2
equals
=
negative 2.1 1 1 4 5 6 1 8
−
2
.
1
1
1
4
5
6
1
8
16
Expression 17: "c" equals negative "R" squared plus "m" squared "C" squared equals negative 6.7 3 3 6 2 7 5 7 1 4 7
c
=
−
R
2
+
m
2
2
C
2
1
equals
=
negative 6.7 3 3 6 2 7 5 7 1 4 7
−
6
.
7
3
3
6
2
7
5
7
1
4
7
17
Expression 18: "B" Subscript, 1 , Baseline equals StartFraction, negative "b" plus StartRoot, "b" squared minus 4 "a" "c" , EndRoot Over 2 "a" , EndFraction equals 3.6 0 1 1 3 6 1 1 9 8 4
B
1
=
−
b
+
b
2
−
4
a
c
2
a
equals
=
3.6 0 1 1 3 6 1 1 9 8 4
3
.
6
0
1
1
3
6
1
1
9
8
4
18
Expression 19: "B" Subscript, 2 , Baseline equals "m" Subscript, 2 , Baseline left parenthesis, "B" Subscript, 1 , Baseline minus "C" Subscript, 1 , Baseline , right parenthesis equals 2.0 7 9 1 1 6 9 0 8 1 8
B
2
=
m
2
B
1
−
C
1
equals
=
2.0 7 9 1 1 6 9 0 8 1 8
2
.
0
7
9
1
1
6
9
0
8
1
8
19
Coordinates
Coordinates
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20
Expression 21: "C" Subscript, 1 , Baseline equals 10
C
1
=
1
0
5
5
10
1
0
21
Expression 22: "C" Subscript, 2 , Baseline equals StartRoot, 0 , EndRoot equals 0
C
2
=
0
equals
=
0
0
22
Expression 23: "A" Subscript, 1 , Baseline equals StartRoot, 0 , EndRoot equals 0
A
1
=
0
equals
=
0
0
23
Expression 24: "A" Subscript, 2 , Baseline equals StartRoot, 0 , EndRoot equals 0
A
2
=
0
equals
=
0
0
24
Graphs
Graphs
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25
Expression 26: polygon left parenthesis, "A" , "D" , right parenthesis Has graph.
p
o
l
y
g
o
n
A
,
D
26
Expression 27: polygon left parenthesis, "A" , "B" , "C" , right parenthesis
p
o
l
y
g
o
n
A
,
B
,
C
27
Expression 28: polygon left parenthesis, "C" , "D" , right parenthesis
p
o
l
y
g
o
n
C
,
D
28
Expression 29: polygon left parenthesis, "A" , "B" , right parenthesis
p
o
l
y
g
o
n
A
,
B
29
Points
Points
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30
39
powered by
powered by
Start black, "A" End black
A
Start black, "B" End black
B
Start black, "C" End black
C
Start black, "D" End black
D
Start black, "X" End black
X
Start black, 12 degrees End black
1
2
°
Start black, 18 degrees End black
1
8
°
"x"
x
"y"
y
"a" squared
a
2
"a" Superscript, "b" , Baseline
a
b
7
7
8
8
9
9
over
÷
functions
(
(
)
)
less than
<
greater than
>
4
4
5
5
6
6
times
×
| "a" |
|
a
|
,
,
less than or equal to
≤
greater than or equal to
≥
1
1
2
2
3
3
negative
−
A B C
StartRoot, , EndRoot
pi
π
0
0
.
.
equals
=
positive
+
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