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sasho [114]
3 years ago
14

Radio stations use electromagnetic waves for broadcasting. The chart shows different frequencies of waves used by radio stations

. A 2 column by 5 row table. Column 1 is titled Radio Station and contains the following entries: W, X, Y, Z. Column 2 is titled Frequency (Megahertz) and contains the following entries: 88, 95, 90, 99. Which radio station has the wave with the longest wavelength? W X Y Z
Mathematics
2 answers:
Alchen [17]3 years ago
5 0

Answer:

its w or A

Step-by-step explanation:

correct on edge 2021

Neko [114]3 years ago
4 0

Answer:

its d

Step-by-step explanation:

just took the test

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If FH = 9x + 15 and GH = 5x + 4,<br> then FG = ?
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Answer:

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Step-by-step explanation:

From the question given:

FH = 9x + 15

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From the question given above, we can say that G is the midpoint of FH. This implies that:

FH = FG + GH

With the above idea in mind, we can obtain FG as follow:

FH = 9x + 15

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FH = FG + GH

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FG = 9x + 15 - 5x - 4

FG = 9x - 5x + 15 - 4

FG = 4x + 11

Next, we shall determine the value of x. This can be obtained as follow:

Since G is the midpoint of FH, it therefore means that FG and GH are equal i.e

FG = GH

With the above idea in mind, we can obtain the value of x as follow:

FG = 4x + 11

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FG = GH

4x + 11 = 5x + 4

Collect like terms

11 - 4 = 5x - 4

7 = x

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Thus, we can obtain the value of FG as follow:

FG = 4x + 11

x = 7

FG = 4x + 11

FG = 4(7) + 11

FG = 28 + 11

FG = 39

***Check ***

FH = 9x + 15

x = 7

FH = 9(7) + 15 = 63 + 15 = 78

GH = 5x + 4

x = 7

GH = 5(7) + 4 = 35 + 4 = 39

FG = 4x + 11

x = 7

FG = 4(7) + 11 = 28 + 11 = 39

FH = FG + GH

FH = 78

FG = 39

GH = 39

FH = FG + GH

78 = 39 + 39

78 = 78

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