Add
3
w
3
w
and
2
w
2
w
.
5
w
−
6
=
−
2
+
w
5
w
-
6
=
-
2
+
w
Move all terms containing
w
w
to the left side of the equation.
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4
w
−
6
=
−
2
4
w
-
6
=
-
2
Move all terms not containing
w
w
to the right side of the equation.
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4
w
=
4
4
w
=
4
Divide each term by
4
4
and simplify.
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w
=
1
Answer: x=7, GA=MR=14
Step-by-step explanation:
Answer: 0.4693877
Step-by-step explanation:
Given that:
cos x=−6/7,
From trigonometry :
Cosx + sinx = 1
Cos2x = cos(x + x)
Recall the double angle identity:
Cos2x = 2cos^2x - 1
Sin2x = 1 - 2sin^2x
Since cosx = - 6/7
Then
Cos2x = 2cos^2x - 1
Cos2x = 2cosx^2 - 1
Cos2x = 2(-6/7)^2 - 1
Cos2x = 2(36/49) - 1
Cos2x = 2 * (72/98) - 1
Cos2x = (2 * 0.7346938) - 1
Cos 2x = ( 1.4693877 - 1)
Cos2x = 0.4693877
Answer:
Step-by-step explanation:
25x = 300
Rearrange to solve
x = 300 divided by 25 = 12
Hope this helps
