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Ratling [72]
3 years ago
13

Write 12/14 as a ratio

Mathematics
1 answer:
spin [16.1K]3 years ago
5 0
Here are three ratios 
1 6/7 
2 120/140
3 60/70
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Annual salary plus bonus data for chief executive officers are presented in the BusinessWeek Annual Pay Survey. A preliminary sa
Anuta_ua [19.1K]

Answer:

175

Step-by-step explanation:

The sample size n in<em> Simple Random Sampling</em> is given by

\bf n=\frac{z^2s^2}{e^2}

<em> where z = 1.96 is the z-score associated with a 95% confidence level ans s the standard deviation. </em>

Replacing values

\bf n=\frac{(1.96)^2(675)^2}{(100)^2}=175

So, there should be 175 chief executive officers in a sample if we want to estimate the population mean annual salary plus bonus with a margin of error of $100,000

7 0
3 years ago
4x.5x³.2x⁵ find the product​
Marat540 [252]
The answer is b and i know that cause just david’s
8 0
3 years ago
Calculate<br>a) 20% of £150<br>b) 15% of 80 kg<br>c) 85% of 2500 m​
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Answer:

A) 30

B) 12 kg

C) 2,125 m

Step-by-step explanation:

8 0
3 years ago
Is 104.12 greater than 104.002
Liono4ka [1.6K]
Yes, 104.12 is greater than 104.002

because 104.12 rounds up to 104.1
        and 104.002 rounds up to 104.0


8 0
3 years ago
A coordinator will select 6 songs from a list of 9 songs to compose an event's musical entertainment lineup. How many different
g100num [7]

Answer:

84 different lineups are possible

Step-by-step explanation:

The order in which the songs are chosen is not important. So we use the combinations formula to solve this question.

Combinations formula:

C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

In this question:

6 musics from a set of 9. So

C_{9,6} = \frac{9!}{6!(9-6)!} = 84

84 different lineups are possible

4 0
3 years ago
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