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agasfer [191]
2 years ago
14

2loga + 4logb - logc - 3logd

Mathematics
2 answers:
lidiya [134]2 years ago
6 0

Answer: I am sorry I have no idea what this is

Step-by-step explanation: It might be log parenthesis a to the power of 2 than b to the power of 4 over cd to the power of 3 parenthesis have a nice day, hope it is not to confusing, it did not let me use the right characters

Blizzard [7]2 years ago
5 0

Answer:

log \left( \frac{a^2\,\,b^4}{c\,\,d^3} \right)

Step-by-step explanation:

We use the properties of logarithms to write this as a single logarithmic expression. First the exponent property:

  2 log(a) + 4 log(b) - log(c) - 3 log(d) =

= log(a^2) + log(b^4) - log(c) - log(d^3) =

and now the multiplication and division properties

= log \left( \frac{a^2\,\,b^4}{c\,\,d^3} \right)

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A sample of 75 information systems managers had an average hourly income of $40.75 with a standard deviation of $7.00. The 95% c
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Answer: c. 39.14 to 42.36

Step-by-step explanation:

We want to determine a 95% confidence interval for the average hourly wage (in $) of all information system managers

Number of sample, n = 75

Mean, u = $40.75

Standard deviation, s = $7.00

For a confidence level of 95%, the corresponding z value is 1.96. This is determined from the normal distribution table.

We will apply the formula

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= mean +/- z ×standard deviation/√n

It becomes

40.75 +/- 1.96 × 7/√75

= 40.75 ± 1.96 × 0.82

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The lower end of the confidence interval is 40.75 - 1.6072 =39.14

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