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2 years ago

Select the correct graph.

Mathematics

1 answer:

ASHA 777 [7]2 years ago

8 0

Answer:

The correct graph is the second one from the first row.

Step-by-step explanation:

Since his initial income was $20,000 per year, then the graph line must cross the "y" axis in that value. Since his average increase in pay on those eight years was $4,000, then for each one year step on the "x" axis the function must increase approximately "4,000" on the "y" axis. The only graph that follow this rule is the second graph on the first row. Since it starts at 20 on the "y" axis and it doubles to "40" only after 5 years, therefore increasing 4 per year.

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In 2015 as part of the General Social Survey, 1289 randomly selected American adults responded to this question:

Radda [10]

Answer:

B (0.312, 0.364)

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 $1 - \frac{\alpha}{2}$

For this problem, we have that:

1289 randomly selected American adults responded to this question. This means that $n = 1289$ .

Of the respondents, 436 replied that America is doing about the right amount. This means that $\pi = \frac{436}{1289} = 0.3382$ .

Determine a 95% confidence interval for the proportion of all the registered voters who will vote for the Republican Party. 

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

The lower limit of this interval is:

$\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.3382 - 1.96\sqrt{\frac{0.3382*0.6618}{1289}} = 0.312$

The upper limit of this interval is:

$\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.3382 + 1.96\sqrt{\frac{0.3382*0.6618}{1289}} = 0.364$

The 95% confidence interval is:

B (0.312, 0.364)

5 0

2 years ago

Expand logarithms equation

Bess [88]

Answer:

$log_2(x) + log_2(y) + log_2(z)$

Step-by-step explanation:

$5log_2(xyz)^{1/5}\\\\5log_2(x)^{1/5} + 5log_2(y)^{1/5} + 5log_2(z)^{1/5}\\\\log_2(x) + log_2(y) + log_2(z)$

4 0

2 years ago

some 8,000 crocus flowers required ro make 2 oumces of saffron. how many flowers are needed to make 16 ounces of saffron

tankabanditka [31]

8000=2 oumces
????=16 oumces
8000 x 16 divided by 2
answer=64,000 crocus

7 0

2 years ago

Read 2 more answers

How Do I solve -7(2v-2)+4v=4(v+1)

diamong [38]

V = 5/7 in fraction from and in decimal form 0. 714285 . Hope this helped . Please mark me brainliest

4 0

2 years ago

11 5/9 + 10 1/3 plz help

Likurg_2 [28]

10 1/3= 31/3
31/3= 93/9

11 5/9= 104/9
93/9 + 104/9 = 197/9
197/9= 21 8/9

your answer is 21 & 8/9

Good Luck
XD

7 0

2 years ago