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polet [3.4K]
4 years ago
15

Just making sure 1 and 2 are corrcet

Mathematics
1 answer:
KIM [24]4 years ago
7 0
1 and 2 are correct.

3.
f(g(x))=9(-x+3)-2=-9x+27-2=-9x+25

4.
f(-2)=\dfrac{24}{3\cdot(-2)-2}\\
f(-2)=\dfrac{24}{-6-2}\\
f(-2)=\dfrac{24}{-8}\\
f(-2)=-3

5.
f(x)=2x+2\\
y=2x+2\\
2x=y-2\\
x=\dfrac{1}{2}y-1\\
f^{-1}(x)=\dfrac{1}{2}x-1\\\\
f^{-1}(4)=\dfrac{1}{2}\cdot4-1\\
f^{-1}(4)=2-1\\
f^{-1}(4)=1
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