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4 years ago

Need help???????????!!!!!!!!!!!

Mathematics

1 answer:

PtichkaEL [24]4 years ago

8 0

Answer:

20 degrees

Step-by-step explanation:

F=9/5C+32 (c=Celsius) There are a few ways to do this but im going to do it my way.

68=9/5C+32 (plug in)

36=9/5C (subtract 32 from both sides)

180=9C (multiply by 5)

20=C (divide by 9)

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3 years ago

Write an exponential function y = abx for a graph that includes (–3, 16) and (–1, 4) f(x) = 2(0.5)x f(x) = 0.5(2)x f(x) = 4(0.3)

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Answer: $f(x)=2(0.5)^x$

Step-by-step explanation:

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Now,

$\dfrac{f(-3)}{f(-1)}=\dfrac{16}{4}=\dfrac{ab^{-3}}{ab^{-1}}\\\\\Rightarrow\ \dfrac{4}{1}=\dfrac{b^{-3}}{b^{-1}}\\\\\Rightarrow\ \dfrac{4}{1}=\dfrac{b}{b^3}=\dfrac{1}{b^2}\\\\\Rightarrow\ b^2=\dfrac{1}{4}\\\\\Rightarrow\ b=\pm\dfrac{1}{2}=\pm0.5$

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At b= 0.5

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So, the required function is $f(x)=2(0.5)^x$ .

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Answer:

Step-by-step explanation:

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