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Free_Kalibri [48]
3 years ago
13

in need of help asap!

Mathematics
2 answers:
sasho [114]3 years ago
7 0

Answer:

180° - 73° = 107°

a= 107°

Step-by-step explanation:

He bro! What's up ? Are you from US?

Lady_Fox [76]3 years ago
5 0

Answer:

a=107°

Step-by-step explanation:

The angles along a straight line always add up to 180. 73+107=180

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Explain how to solve 2^x + 1 = 9 using the change of base formula log base b of y equals log y over log b. Include the solution
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Answer:

x=2.170

Step-by-step explanation:

The given equation is 2^{x+1}=9.

We take logarithm of both sides to base 2 to get:

\log_2(2^{x+1})=\log_29

Apply the power rule of logarithms to get:

x+1=\log_29

We now apply the change of base formula:

x+1=\frac{\log_{10}9}{\log_{10}2}

x+1=\frac{0.9542}{0.3010}

x+1=3.1701

x=3.1701-1

x=2.1701

To the nearest thousandth, x=2.170

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