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Aleksandr-060686 [28]

3 years ago

14

V(x) is a function A. True B. False 100 points

1 answer:

mash [69]3 years ago

4 0

Answer:

true

Step-by-step explanation:

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Of 60 cities, 3 have a lake and 29 have a river running through them. What fraction of these 60 cities have a lake or river runn

nekit [7.7K]

Hello!

We know our denominator is 60, because that is the total amount of cities. Now, we must find our numerator:

3 + 29 = 32

Fraction: 32/60

You can simplify this by dividing both the numerator and denominator by 4:

32 ÷ 4 = 8 60 ÷ 4 = 15

FRACTION (SIMPLIFIED): 8/15

6 0

3 years ago

Which inequality represents the sentence below? Two more than a number is less than 14. 2 + n less-than-or-equal-to 14 2 + n les

Romashka [77]

Answer: 2 + n less-than 14

Or 2 + n < 14

Step-by-step explanation:

Let n = number

Two more than a number is less than 14

n + 2 < 14

Or 2 + n < 14 which is the same as

2 + n less-than 14

7 0

3 years ago

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How do you solve 5y+4=4y+5

igor_vitrenko [27]

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3 years ago

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An equation is shown below:

Nana76 [90]

Step 1: 18x - 42 = 2
step 2: 18x = 44

4 0

3 years ago

An important factor in selling a residential property is the number of times real estate agents show a home. A sample of 23 home

yanalaym [24]

Using the t-distribution, it is found that:

a. The <u>margin of error</u> is of 4.7 homes.

b. The 98% confidence interval for the population mean is (19.3, 28.7).

The information given in the text is:

Sample mean of $\overline{x} = 24$ .
Sample standard deviation of $s = 9$ .
Sample size of $n = 23$ .

We are given the <u>standard deviation for the sample</u>, which is why the t-distribution is used to solve this question.

The confidence interval is:

$\overline{x} \pm M$

The margin of error is:

$M = t\frac{s}{\sqrt{n}}$

Item a:

The critical value, using a t-distribution calculator, for a two-tailed <u>98% confidence interval</u>, with 23 - 1 = <u>22 df</u>, is t = 2.508.

Then, the <em>margin of error</em> is:

$M = t\frac{s}{\sqrt{n}} = 2.508\frac{9}{\sqrt{23}} = 4.7$

Item b:

The interval is:

$\overline{x} - M = 24 - 4.7 = 19.3$

$\overline{x} + M = 24 + 4.7 = 28.7$

The 98% confidence interval for the population mean is (19.3, 28.7).

A similar problem is given at brainly.com/question/15180581

3 0

2 years ago