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WARRIOR [948]
3 years ago
7

If CD = 7√3, find AE I give you 25, PLSS HELPPP

Mathematics
1 answer:
saw5 [17]3 years ago
3 0

Answer:

AE = 22.86

Step-by-step explanation:

In triangle CDE

cos 30° = CD/CE

\frac{\sqrt 3}{2} = \frac {7\sqrt 3}{CE}

CE=  {7\sqrt 3}\times  \frac{2}{\sqrt 3}

CE= 14

In triangle BCE

sin 45° = CE/BE

\frac{1}{\sqrt 2}= \frac{14}{BE}

BE= 14\sqrt 2

In triangle ABE

sin 60° = BE/AE

\frac{\sqrt 3}{2}= \frac{14\sqrt 2}{AE}

AE= 14\sqrt 2\times\frac{2}{\sqrt 3}

AE= \frac{28\sqrt 2}{\sqrt 3}

AE= \frac{28\sqrt 6}{ 3}

AE= \frac{68.5857128}{ 3}

AE = 22.8619043

AE = 22.86

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x
2
3
−
7
x
1
3
+
10
=
0
x
2
3
-
7
x
1
3
+
10
=
0
Rewrite
x
2
3
x
2
3
as
(
x
1
3
)
2
(
x
1
3
)
2
.
(
x
1
3
)
2
−
7
x
1
3
+
10
=
0
(
x
1
3
)
2
-
7
x
1
3
+
10
=
0
Let
u
=
x
1
3
u
=
x
1
3
. Substitute
u
u
for all occurrences of
x
1
3
x
1
3
.
u
2
−
7
u
+
10
=
0
8 0
3 years ago
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