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BC = 9 / 2 = 4.5
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Expression 12: "a" "x" squared plus "b" "x" plus "c" equals 0
a
x
2
+
b
x
+
c
=
0
12
Expression 13: "B" Subscript, 1 , Baseline equals StartFraction, negative "b" minus StartRoot, "b" squared minus 4 "a" "c" , EndRoot Over 2 "a" , EndFraction equals negative 1.5
B
1
=
−
b
−
b
2
−
4
a
c
2
a
equals
=
negative 1.5
−
1
.
5
13
Expression 14: "a" equals "m" squared plus 1 equals 2.1 1 5 7 0 2 4 7 9 3 4
a
=
m
2
1
+
1
equals
=
2.1 1 5 7 0 2 4 7 9 3 4
2
.
1
1
5
7
0
2
4
7
9
3
4
14
Expression 15: "b" equals negative 2 "m" squared "D" Subscript, 1 , Baseline equals negative 8.9 2 5 6 1 9 8 3 4 7 1
b
=
−
2
m
2
1
D
1
equals
=
negative 8.9 2 5 6 1 9 8 3 4 7 1
−
8
.
9
2
5
6
1
9
8
3
4
7
1
15
Expression 16: "c" equals "m" squared "D" squared minus 6 squared equals negative 18.1 4 8 7 6 0 3 3 0 6
c
=
m
2
1
D
2
1
−
6
2
equals
=
negative 18.1 4 8 7 6 0 3 3 0 6
−
1
8
.
1
4
8
7
6
0
3
3
0
6
16
Expression 17: "B" Subscript, 2 , Baseline equals StartRoot, 6 squared minus "B" squared , EndRoot equals 5.8 0 9 4 7 5 0 1 9 3 1
B
2
=
6
2
−
B
2
1
equals
=
5.8 0 9 4 7 5 0 1 9 3 1
5
.
8
0
9
4
7
5
0
1
9
3
1
17
Expression 18: "C" Subscript, 2 , Baseline equals StartRoot, 3 squared minus "C" squared , EndRoot equals 2.5 4 1 6 4 5 3 2 0 9 5
C
2
=
3
2
−
C
2
1
equals
=
2.5 4 1 6 4 5 3 2 0 9 5
2
.
5
4
1
6
4
5
3
2
0
9
5
18
Expression 19: "D" Subscript, 1 , Baseline equals StartAbsoluteValue, 4 , EndAbsoluteValue equals 4
D
1
=
4
equals
=
4
4
19
Expression 20: "D" Subscript, 2 , Baseline equals "A" Subscript, 2 , Baseline equals 0
D
2
=
A
2
equals
=
0
0
20
Graphs
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21
Expression 22: "y" less than 40 Has graph. To audio trace, press ALT+T.
y
<
4
0
22
Expression 23: polygon left parenthesis, "A" , "C" , "A" , "B" , "D" , right parenthesis Has graph.
p
o
l
y
g
o
n
A
,
C
,
A
,
B
,
D
23
Points
Points
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24
38
powered by
powered by
A
B
C
D
3
6
4
?
( 2 )
( 1 )
"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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