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2 years ago

What is the solution of log2 (3x-7) =3

Mathematics

2 answers:

Valentin [98]2 years ago

7 0

Answer:

x = 5

Step-by-step explanation:

because the log is base 2 you can remove the log by raing 2 to the power of each side:

$2^{log2 (3x-7)} = 2^{3}$

the 2 and log2 cancel leaving:

$3x-7 = 2^{3}$

this means we can now solve through simple algebra:

$3x-7 = 8\\3x = 8 + 7\\3x = 15\\3x/3 =15/3\\x = 5$

hammer [34]2 years ago

5 0

The Solution X = 5.

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mel-nik [20]

Answer:

x° = 11°

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Step-by-step explanation:

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then Z FGH = Z HGI

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or, 3x° - 4x° = - 14° + 3°

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2 years ago

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1 year ago

Albert receives $0.30 per pound for 1 to 49 pounds of glass bottles he recycles. He receives $0.40

Marina86 [1]

Answer:

Yes

Step-by-step explanation:

The amount of money Albert receives is described by the expression

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The graph is shown below.

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2 years ago

Find the value of f(–3) and g(3) if f(x) = –6x + 3 and g(x) = 3x + 21x–3.

ryzh [129]

Answer:

f(-3) = 21

g(3) = 69

Step-by-step explanation:

We have been given the following functions;

f(x) = –6x + 3

g(x) = 3x + 21x–3.

To find f(-3) , we simply substitute x = -3 in the function of f(x);

f(-3) = -6(-3) + 3

= 21

To find g(3) , substitute x = 3 in the function of g(x);

g(3) = 3(3) +21(3) - 3

= 69

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2 years ago