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3 years ago

What is the slope of a line that passes through at (-1,5) and (4,5)

Mathematics

1 answer:

murzikaleks [220]3 years ago

3 0

5-5/4--1= 0/5=undefined slope. This is a line that goes up and down and cannot exist in a function

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Negative 12 plus 44<br> negative 19 plus 61

antiseptic1488 [7]

Your answer would be 74 if you are looking for the answer.

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3 years ago

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krek1111 [17]

Answer:

60 degrees

Step-by-step explanation:

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2 years ago

F(x) = x2 + 1<br> g(x) = 5 – x

xz_007 [3.2K]

Answer:

g(x) = 5 – x

Step-by-step explanation:

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3 years ago

The amount of money spent on textbooks per year for students is approximately normal.

Ostrovityanka [42]

Answer:a

$336.04 < \mu < 443.96$

The margin of error will increase

The margin of error will decreases

The 99% confidence interval is $0.4107 < p < 0.4293$

Step-by-step explanation:

From the question we are told that

The sample size $n = 19$

The sample mean is $\= x = \$\ 390$

The standard deviation is $\sigma = \$ \ 120$

Given that the confidence level is 95% then the level of significance is mathematically represented as

$\alpha = 100 - 95$

$\alpha = 5 \%$

$\alpha = 0.05$

Next we obtain the critical value of $\frac{\alpha }{2}$ from the normal distribution table

$Z_{\frac{\alpha }{2} } = 1.96$

The margin of error is mathematically represented as

$E = Z_{\frac{\alpha }{2} } * \frac{\sigma}{\sqrt{n} }$

=> $E = 1.96 * \frac{120}{\sqrt{19} }$

=> $E = 53.96$

The 95% confidence interval is

$\= x - E < \mu < \= x + E$

=> $390 - 53.96 < \mu < 390 - 53.96$

=> $336.04 < \mu < 443.96$

When the confidence level increases the $Z_{\frac{\alpha }{2} }$ also increases which increases the margin of error hence the confidence level becomes wider

Generally the sample size mathematically varies with margin of error as follows

$n \ \ \alpha \ \ \frac{1}{E^2 }$

So if the sample size increases the margin of error decrease

The sample proportion is mathematically represented as

$\r p = \frac{210}{500}$

$\r p = 0.42$

Given that the confidence level is 0.99 the level of significance is $\alpha = 0.01$

The critical value of $\frac{\alpha }{2}$ from the normal distribution table is

$Z_{\frac{\alpha }{2} } = 2.58$

Generally the margin of error is mathematically represented as

$E = Z_{\frac{\alpha }{2} }* \sqrt{ \frac{\r p (1- \r p )}{n} }$

=> $E = 0.42 * \sqrt{ \frac{0.42 (1- 0.42 )}{ 500} }$

=> $E = 0.0093$

The 99% confidence interval is

$\r p - E < p < \r p + E$

$0.42 - 0.0093 < p < 0.42 + 0.0093$

$0.4107 < p < 0.4293$

4 0

3 years ago

If you see that gasoline costs $1.70 in Georgia and $3.40 in California, you can

grin007 [14]

The question is incomplete:

If you see that gasoline costs $1.70 in Georgia and $3.40 in California, you can conclude that gasoline is twice as expensive in California as in Georgia. This conclusion from this comparison reflects the function of money as a:

-store of value

-an object with a value that varies sharply from one place to another

-medium of exchange

-unit of account

Answer:

Unit of account

Step-by-step explanation:

-Store of value refers to something that can be kept for a period of time and maintains its value in the future.

-An object with a value that varies sharply from one place to another means that products can have different prices in different places.

-Medium of exchange refers to an object with an standard value that allows you to purchase goods or services.

-Unit of account refers to a numerical unit that allows you to compare the value of products and services.

According to this, the answer is that this conclusion from this comparison reflects the function of money as a unit of account because it indicates that money works as a unit that you can use to compare the value of products, in this case the price of gasoline in different places.

6 0

2 years ago