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prisoha [69]
3 years ago
15

Which equation is equivalent to 7(x-2) = 149? Will give Brainly points

Mathematics
1 answer:
Effectus [21]3 years ago
8 0

Answer:

B. \log_{7} 149+2 = x

Step-by-step explanation:

Let 7^{x-2} = 149, we proceed to find its equivalent expression by applying logarithm properties:

1) 7^{x-2} = 149 Given.

2) \log_{7} 7^{x-2} = \log_{7} 149 Definition of logarithm.

3) (x-2)\cdot \log_{7}7 = \log_{7} 149    \log_{a} b^{c} = c\cdot \log_{a} b

4) x-2=\log_{7}149     \log_{a}a = 1

5) x = \log_{7}149+2   Compatibility with addition/Existence of additive inverse/Modulative property

6) \log_{7} 149+2 = x Symmetrical property/Result.

Hence, the right answer is B.

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Answer:

  14 and 22

Step-by-step explanation:

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x = 9 secθ

dx = 9 secθ tanθ dθ

and

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Substituting values in  ∫ 1 dx / ( x^{2} - 81 ) ,

∫ (9 secθ tanθ ) dθ / ( 9 tanθ )

∫ secθ dθ = ln | secθ + tanθ | + c

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brainly.com/question/20156869

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The elements that compose seawater, along with the corresponding percents, are shownin the table.Mrs. Buller collects a 500-ml s
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Therefore the chlorine content in 500ml of water is 9.7ml.

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