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3 years ago

Evaluate log6 base 10+ log45 base 10 - log27 base 10

Mathematics

1 answer:

Arlecino [84]3 years ago

4 0

Answer:

The correct answer is B.

Explanation:

log106 + log1045 - log1027

log10

= log102 x 5

log1010 = 1

Step-by-step explanation:

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In math class, 4 students complete individual surveys to determine the percentage of high school teachers that have a second job

dlinn [17]

Answer:

Option D) B and C

Step-by-step explanation:

we know that

To find out the percentage of high school teachers that have a second job, divide the number of teachers that have a second job by the total number of teachers

Survey A

$\frac{28}{110}=0.2545$

Convert to percentage

$0.2545(100)=25.45\%$

Survey B

$\frac{27}{90}=0.3$

Convert to percentage

$0.3(100)=30\%$

Survey C

$\frac{21}{70}=0.3$

Convert to percentage

$0.3(100)=30\%$

Survey D

$\frac{32}{80}=0.4$

Convert to percentage

$0.4(100)=40\%$

Compare the percentages

Surveys B and C have the same percentage

therefore

Surveys B and C show proportional results, because the ratio of the number of teachers that have a second job by the total number of teachers is equal (this number is the constant of proportionality k in a proportional relationship between two variables)

8 0

3 years ago

Please explain how you got the answer <3

Serhud [2]

La respuesta es a) 1470

3 0

3 years ago

A frequency distribution is a tabular summary of data showing the a. number of items in several classes. b. relative percentage

Viefleur [7K]

Answer:

The answer is a: Number of items in several classes.

Step-by-step explanation:

Frequency distributions are tables that represent the number of times a specific data, number object etc appears in a sample. So for example if we have this data

2,2,4,4,6,6,6,8,8,10

The frequency distributions is

Number frequency

2 2

4 2

6 3

8 2

10 1

The other options are identical (c and are the same as percentages can be expressed as fractions. Relative percentages or fractions are tables that express the weight that each category has in the entire data. An example for our data would be: (10 are the total number of obs)

Number Fraction/%

2 2/10 or 20%

4 2/10 or 20%

6 3/10 or 30%

8 2/10 or 20%

10 1/10 or 10%

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3 years ago

For the straight line y =1/2x-4 what are the slope and y intercept

NikAS [45]

Slope Is 1/2 & Y-intercept Is -4

8 0

3 years ago

Least squares is the ? method for determining a line of best fit.

sergey [27]

I believe that it is C

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3 years ago