Getting Back to Me: From Girl to Boy to Woman in Just Fifty Years

Getting Back to Me: From Girl to Boy to Woman in Just Fifty Years

Matematika Kaka bg bantu jawab 9& 10 plis​

Kaka bg bantu jawab 9& 10 plis​

Penjelasan dengan langkah-langkah:

Nomor 9

[tex]f(x) = 2x + 5[/tex]

[tex]g(x) = \frac{x - 1}{x + 4} [/tex]

[tex] \: [/tex]

[tex]f(g(a)) = (f \circ g)(a)[/tex]

[tex]2( \frac{a- 1}{a + 4} ) + 5 = 5[/tex]

[tex] \frac{2(a - 1)}{a + 4} = 5 - 5[/tex]

[tex] \frac{2(a - 1)}{a + 4} = 0[/tex]

[tex]2a - 2 = 0.(a + 4)[/tex]

[tex]2a - 2 = 0[/tex]

[tex]2a = 2[/tex]

[tex]a = \frac{2}{2} [/tex]

[tex]a = 1[/tex]

[tex] \: [/tex]

[tex] \: [/tex]

Nomor 10

[tex]f(x) = 4x + 1[/tex]

[tex]g(x) = 5x - 2[/tex]

[tex] \: [/tex]

[tex] = (f \circ g)(2)[/tex]

[tex] = 4(5x - 2) + 1[/tex]

[tex] = 4(5.2 - 2) + 1[/tex]

[tex] = 4(10 - 2) + 1[/tex]

[tex] = 4.8 + 1[/tex]

[tex] = 32 + 1[/tex]

[tex] = 33[/tex]

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