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inna [77]
3 years ago
5

I only need letter D

Mathematics
1 answer:
strojnjashka [21]3 years ago
6 0

Answer:

its how much money he will get

Step-by-step explanation:

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Find the slope of the line
Alexeev081 [22]
The slope is 2. rise over run.
4 0
3 years ago
R - 17.1 = -4.8
denis-greek [22]

<u><em>Answer: r=12.3 *The answer must have a  positive sign or decimal point.*</em></u>

Explanation:

First, you had to do is add 17.1 from both sides of an equation.

r-17.1+17.1=-4.8+17.1

And then, simplify by equation.

17.1+-4.8=12.3

You can also add by the numbers.

12.3+4.8=17.1

r=12.3

Hope this helps!


7 0
3 years ago
Hey please answer the 3 questions attached, thank you very much!
kobusy [5.1K]

Answer:

a) negative correlation b) Diagram C (I think) c) Diagram b

Step-by-step explanation:

a) Negative= line going dow

Positive= line going up

no correlation= no line

b) the dots are to close to each other which mean it has a string correlation.

c)Its no correlation, so line should not be drawn

7 0
3 years ago
A matched pairs experiment compares the taste of instant versus fresh-brewed coffee. Each subject tastes two unmarked cups of co
Bogdan [553]

Answer:

We conclude that the majority of people prefer the taste of fresh-brewed coffee.

Step-by-step explanation:

We are given that of the 50 subjects who participate in the study, 16 prefer the instant coffee.

We have to test the claim that a majority of people prefer the taste of fresh-brewed coffee.

<em />

<u><em>Let p = proportion of the population who prefer fresh-brewed coffee</em></u>

So, Null Hypothesis, H_0 : p \leq 50%     {means that the majority of people does not prefer the taste of fresh-brewed coffee}

Alternate Hypothesis, H_A : p > 50%     {means that the majority of people prefer the taste of fresh-brewed coffee}

The test statistics that would be used here <u>One-sample z proportion statistics;</u>

                        T.S. =  \frac{\hat p-p}{\sqrt{\frac{\hat p(1-\hat p)}{n} } }  ~ N(0,1)

where, \hat p = sample proportion who prefer fresh-brewed coffee = \frac{34}{50} = 0.68

            n = sample of subjects = 50

So, <u><em>test statistics</em></u>  =  \frac{0.68-0.50}{\sqrt{\frac{0.68(1-0.68)}{50} } }  

                               =  2.73

The value of z test statistics is 2.73.

<u>Now, P-value of the test statistics is given by;</u>

         P-value = P(Z > 2.73) = 1 - P(Z \leq 2.73)

                       = 1 - 0.99683 = 0.0032

Since, in the question we are not given with the level of significance so we assume it to be 5%. Now, at 5% significance level the z table gives critical values of 1.645 for right-tailed test.

<em>Since our test statistics is more than the critical value of z, so we have sufficient evidence to reject our null hypothesis as it will fall in the rejection region due to which </em><u><em>we reject our null hypothesis</em></u><em>.</em>

Therefore, we conclude that the majority of people prefer the taste of fresh-brewed coffee.

4 0
3 years ago
Find the total length of six sections when each section is 72.5mm in length​
Tema [17]
The total length is 435mm
3 0
3 years ago
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