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Hovedbrud 31
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Expression 14: left parenthesis, "x" minus "y" , right parenthesis squared equals 961 Has graph. To audio trace, press ALT+T.
x
−
y
2
=
9
6
1
14
Expression 15: "x" minus "y" equals left bracket, negative 1 , 1 , right bracket times 31 Has graph. To audio trace, press ALT+T.
x
−
y
=
−
1
,
1
·
3
1
15
Triangle Legs x and y
Triangle Legs x and y
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16
1 ) x + y = 49, og x - y = 31 ⇒
1 ) x + y = 49, og x - y = 31 ⇒
17
Expression 18: "x" Subscript, 1 , Baseline equals StartAbsoluteValue, 40 , EndAbsoluteValue equals 40
x
1
=
4
0
equals
=
40
4
0
18
Expression 19: "y" Subscript, 1 , Baseline equals StartAbsoluteValue, 9 , EndAbsoluteValue equals 9
y
1
=
9
equals
=
9
9
19
2) x + y = 49, og x - y = -31
2) x + y = 49, og x - y = -31
20
3) x + y = -49, og x - y = 31
3) x + y = -49, og x - y = 31
21
4) x + y = -49, og x - y = -31
4) x + y = -49, og x - y = -31
22
Trekantens korteste side er 9 cm.
Trekantens korteste side er 9 cm.
23
Trekantens længste side er 40 cm.
Trekantens længste side er 40 cm.
24
Kontrol:
Kontrol:
25
Expression 26: StartFraction, 40 times 9 Over 2 , EndFraction equals 180
4
0
·
9
2
equals
=
180
1
8
0
26
Expression 27: StartRoot, 40 squared plus 9 squared , EndRoot equals 41
4
0
2
+
9
2
equals
=
41
4
1
27
Points and Triangle
Points and Triangle
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28
35
powered by
powered by
41 "c" "m"
4
1
c
m
Start black, ( 0 ; 0 ) End black
(
0
;
0
)
Start black, ( 40 ; 9 ) End black
(
4
0
;
9
)
Start black, ( 40 ; 0 ) End black
(
4
0
;
0
)
"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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