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Nitella [24]
3 years ago
9

Can someone please help me ​

Mathematics
1 answer:
OleMash [197]3 years ago
3 0

Answer:

12.25

Step-by-step explanation:

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I NEED HELP!! please show all work
PtichkaEL [24]

Take the logarithm of both sides. The base of the logarithm doesn't matter.

4^{5x} = 3^{x-2}

\implies \log 4^{5x} = \log 3^{x-2}

Drop the exponents:

\implies 5x \log 4 = (x-2) \log 3

Expand the right side:

\implies 5x \log 4 = x \log 3 - 2 \log 3

Move the terms containing <em>x</em> to the left side and factor out <em>x</em> :

\implies 5x \log 4 - x \log 3 = - 2 \log 3

\implies x (5 \log 4 - \log 3) = - 2 \log 3

Solve for <em>x</em> by dividing boths ides by 5 log(4) - log(3) :

\implies \boxed{x = -\dfrac{ 2 \log 3 }{ 5 \log 4 - \log 3 }}

You can stop there, or continue simplifying the solution by using properties of logarithms:

\implies x = -\dfrac{ \log 3^2 }{ \log 4^5 - \log 3 }

\implies x = -\dfrac{ \log 9 }{ \log 1024 - \log 3 }

\implies \boxed{x = -\dfrac{ \log 9 }{ \log \frac{1024}3 }}

You can condense the solution further using the change-of-base identity,

\implies \boxed{x = -\log_{\frac{1024}3}9}

5 0
3 years ago
How are observations different from inferences? (choose)
sergejj [24]

Answer:

b

Step-by-step explanation:

4 0
4 years ago
What is the slope of the line that passes through (2 -- 3) and (-2, 10)
VMariaS [17]

Answer:

13 / -4

Step-by-step explanation:

7 0
3 years ago
1/6+1/12 Write the Awnser in lowest terms Show your work
Nezavi [6.7K]

Answer:

1/4

Step-by-step explanation:

1/6 + 1/12

Multiply the numerator and denominator of the first fraction by 2.

2/12 + 1/12

Add both fractions, because they have a common denominator.

3/12

The fraction can be further simplified.

1/4

6 0
4 years ago
If the correlation coefficient is 0.96, how confident can you be that your predicted value for the cost of a call at 70 minutes
Kitty [74]
Very confident because a correlation coefficient of 1 is perfect then a correlation coefficient of .96 means it is like 96% accurate
6 0
3 years ago
Read 2 more answers
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