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IRINA_888 [86]
3 years ago
5

What is the prime factors of the numbers 48

Mathematics
1 answer:
Anna35 [415]3 years ago
8 0

Answer:

24,12,6

Step-by-step explanation:

48 is even, so you can factor out 2, your first prime factor

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A manufacturer of golf equipment wishes to estimate the number of left-handed golfers. A previous study indicates that the propo
never [62]

Answer:

A sample of 997 is needed.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

z is the z-score that has a p-value of 1 - \frac{\alpha}{2}.

The margin of error is of:

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

A previous study indicates that the proportion of left-handed golfers is 8%.

This means that \pi = 0.08

98% confidence level

So \alpha = 0.02, z is the value of Z that has a p-value of 1 - \frac{0.02}{2} = 0.99, so Z = 2.327.  

How large a sample is needed in order to be 98% confident that the sample proportion will not differ from the true proportion by more than 2%?

This is n for which M = 0.02. So

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

0.02 = 2.327\sqrt{\frac{0.08*0.92}{n}}

0.02\sqrt{n} = 2.327\sqrt{0.08*0.92}

\sqrt{n} = \frac{2.327\sqrt{0.08*0.92}}{0.02}

(\sqrt{n})^2 = (\frac{2.327\sqrt{0.08*0.92}}{0.02})^2

n = 996.3

Rounding up:

A sample of 997 is needed.

3 0
3 years ago
Simplify the expression (7+5)+4•13-2
Yakvenalex [24]
Pemdas

Parentheses exponents multiplication divide add subtract (7+5)=12

12+4•13-2 4•13= 52

12+52-2
64-2

The answer is 62
7 0
3 years ago
Read 2 more answers
Plsss answer everything you know I need the answer ASAP
Evgesh-ka [11]

1. bobby would be 21 and chris 18.


8 0
3 years ago
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What is the product of 58 and 1,000
zysi [14]
58 * 1,000 = 58,000 its multiplication

5 0
3 years ago
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How to find the missing value of ?+59 5/8 =82 2/3
Alex17521 [72]

Answer: 23 1/24

Step-by-step explanation:

There's no divisible number, hence multiply the two denominators to get 24

Then solve to get: 23 16 -15/24

23 1/24

4 0
3 years ago
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