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3 years ago

Bertha is filing her federal income tax return with the 1040EZ form using

Mathematics

2 answers:

dedylja [7]3 years ago

6 0

Answer:

$22,640 if we use the standard deduction available for 2019 (filing due April 15th, 2020)

Step-by-step explanation:

Bertha's adjusted gross income = $34,700 + $140 = $34,840

since she has no dependents, she can only claim a $12,200 standard deduction (for 2019 revenue, filing due April 15th, 2020)

to calculate line 6, you subtract the standard deduction from the adjusted gross income = $34,840 - $12,200 = $22,640

*on previous years the standard deduction was $9,350 (answer would have been $25,490) or $10,400 (possible answer $24,440).

Lesechka [4]3 years ago

4 0

Answer:

The answer is $25,490

Step-by-step explanation:

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sertanlavr [38]

Answer: x=26-14

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3 years ago

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Grades on a standardized test are known to have a mean of 1000 for students in the United States. The test is administered to 45

krok68 [10]

Answer:

The 95% confidence interval is $1003 < \mu$

Yes there is statistically significant evidence that students in Florida perform differently from other students in the United States

Step-by-step explanation:

From the question we are told that

The population mean is $\mu = 1000$

The sample size is $n = 453$

The sample mean is $\= x = 1013$

The standard deviation is $s = 108$

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

$\alpha = 100 - 95$

=> $\alpha = 5\%$

=> $\alpha = 0.05$

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

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

Generally the margin of error is mathematically represented as

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

=> $E = 1.96 * \frac{108}{\sqrt{453} }$

=> $E = 9.946$

Generally the 95% confidence interval is mathematically represented as

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

=> $1013 - 9.946 < \mu < 1013 + 9.946$

=> $1003 < \mu$

Given that the population mean(1000) is not within the 95% confidence interval for l for the average test score for students in Florida, then it means that there is statistically significant evidence that students in Florida perform differently from other students in the United States

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3 years ago

If their food and beverages cost 25.30 and there is an 8% meals tax, how much is the bill?

pentagon [3]

25.3 × 1.08
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The total bill is $27.32

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