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Line Segment MN = ?
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表达式17: "m" Subscript, 2 , Baseline equals StartFraction, 5 Over "B" Subscript, 1 , Baseline minus "N" Subscript, 1 , Baseline , EndFraction
m
2
=
5
B
1
−
N
1
equals
=
negative 0.5
−
0
.
5
17
表达式18: "y" equals "m" Subscript, 1 , Baseline left parenthesis, "x" minus "M" Subscript, 1 , Baseline , right parenthesis
y
=
m
1
x
−
M
1
18
表达式19: "y" equals "m" Subscript, 2 , Baseline left parenthesis, "x" minus "N" Subscript, 1 , Baseline , right parenthesis
y
=
m
2
x
−
N
1
19
表达式20: "m" Subscript, 1 , Baseline left parenthesis, "T" Subscript, 1 , Baseline minus "M" Subscript, 1 , Baseline , right parenthesis tilde "m" Subscript, 2 , Baseline left parenthesis, "T" Subscript, 1 , Baseline minus "N" Subscript, 1 , Baseline , right parenthesis
m
1
T
1
−
M
1
~
m
2
T
1
−
N
1
20
表达式21: "T" Subscript, 2 , Baseline equals "m" Subscript, 2 , Baseline left parenthesis, "T" Subscript, 1 , Baseline minus "N" Subscript, 1 , Baseline , right parenthesis
T
2
=
m
2
T
1
−
N
1
equals
=
2.5
2
.
5
21
表达式22: "m" Subscript, 3 , Baseline equals StartFraction, 5 Over "N" Subscript, 1 , Baseline minus "A" Subscript, 1 , Baseline , EndFraction
m
3
=
5
N
1
−
A
1
equals
=
0.5
0
.
5
22
表达式23: "m" Subscript, 4 , Baseline equals StartFraction, 5 Over "M" Subscript, 1 , Baseline minus "D" Subscript, 1 , Baseline , EndFraction
m
4
=
5
M
1
−
D
1
equals
=
negative 0.5
−
0
.
5
23
表达式24: "y" equals "m" Subscript, 4 , Baseline left parenthesis, "x" minus "M" Subscript, 1 , Baseline , right parenthesis
y
=
m
4
x
−
M
1
24
表达式25: "y" equals "m" Subscript, 3 , Baseline left parenthesis, "x" minus "N" Subscript, 1 , Baseline , right parenthesis
y
=
m
3
x
−
N
1
25
表达式26: "m" Subscript, 4 , Baseline left parenthesis, "P" Subscript, 1 , Baseline minus "M" Subscript, 1 , Baseline , right parenthesis tilde "m" Subscript, 3 , Baseline left parenthesis, "P" Subscript, 1 , Baseline minus "N" Subscript, 1 , Baseline , right parenthesis
m
4
P
1
−
M
1
~
m
3
P
1
−
N
1
26
表达式27: "P" Subscript, 2 , Baseline equals "m" Subscript, 3 , Baseline left parenthesis, "P" Subscript, 1 , Baseline minus "N" Subscript, 1 , Baseline , right parenthesis
P
2
=
m
3
P
1
−
N
1
equals
=
negative 2.5
−
2
.
5
27
Graphs
Graphs
对学生隐藏该文件夹。
28
表达式29: polygon left parenthesis, "C" , "D" , "M" , right parenthesis
p
o
l
y
g
o
n
C
,
D
,
M
29
表达式30: polygon left parenthesis, "A" , "B" , "N" , right parenthesis
p
o
l
y
g
o
n
A
,
B
,
N
30
表达式31: polygon left parenthesis, "A" , "D" , right parenthesis
p
o
l
y
g
o
n
A
,
D
31
表达式32: polygon left parenthesis, "B" , "C" , right parenthesis
p
o
l
y
g
o
n
B
,
C
32
表达式33: polygon left parenthesis, "M" , "N" , right parenthesis
p
o
l
y
g
o
n
M
,
N
33
Points
Points
对学生隐藏该文件夹。
34
53
技术支持
技术支持
A
B
C
D
M
N
P
T
10
10
10
"x"
x
"y"
y
"a" squared
a
2
"a" Superscript, "b" , Baseline
a
b
7
7
8
8
9
9
over
÷
功能
(
(
)
)
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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