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3 years ago

Uhhhhhhhhh I need hellpppppppppp

Mathematics

1 answer:

GenaCL600 [577]3 years ago

6 0

Bsuskshdjskshsosshdkshsksbxksmsjs

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What is the common ratio of the geometric sequence 1, 4, 16, 64, ...?

krok68 [10]

For Example;
1) $\frac{4}{1} = 4$
2) $\frac{16}{4} = 4$

For this sequence the common ratio = 4

8 0

2 years ago

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A study of recent records of car accidents revealed that average proportion of drivers who were distracted by their phones at th

aksik [14]

Answer:

At least 547 records need to be studied.

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 interval $1-\alpha$ , we have the following confidence interval of proportions.

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

In which

Z is the zscore that has a pvalue of $1 - \frac{\alpha}{2}$ .

And the margin of error is:

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

95% confidence interval

So $\alpha = 0.05$ , z is the value of Z that has a pvalue of $1 - \frac{0.05}{2} = 0.975$ , so $z = 1.96$ .

In this problem, we have that:

$M = 0.04, p = 0.35$

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

$0.04 = 1.96\sqrt{\frac{0.35*0.65}{n}}$

$0.04\sqrt{n} = 0.93486$

$\sqrt{n} = 23.37$

$n = 546.2275$

At least 547 records need to be studied.

6 0

3 years ago

1.9/10 times 3/6 then simplified

givi [52]

1) 0.095
2)0.1875
3)0.3
4)0.21875
5)0.133
6)0.66
7) 0.6
8)0.375

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3 years ago

Given f(x) = 3/4 x + 12, find the value of x when f(x) = x.

12345 [234]

Answer:

The rigth answer is, x = 1

Step-by-step explanation:

As:

f (x) = 3/4 x + 12

They separate the terms:

3/4 x = 12

Then, what you are multiplying happens to divide:

x = 12/1/3/4

Media are divided by means and ends with ends, and we have as a result that:

x = 3/3 = 1

5 0

3 years ago

Need more help - Attached image

mylen [45]

Answer:B

Step-by-step explanation:

4 0

3 years ago

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