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olya-2409 [2.1K]
3 years ago
12

Hey can somone please help posted picture of question

Mathematics
2 answers:
KonstantinChe [14]3 years ago
8 0
Short Answer: False
The domain is the x value. It is the power in the equation. You can have almost any value for x depending on what you've been told about infinity. My definition for the domain (for this question) is 
- ∞ ≤ x ≤ ∞ for all real values. The graph is almost the same one as the last one I sent you, but it is slightly different.

Answer << False

PS How do you get such clear pictures? It's a joy to read.


ki77a [65]3 years ago
4 0
Because the equation does not have any variable other than the x for the exponent.
 The domain would be all real numbers even ones less than 1/2
 so the answer is False
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The U.S. 2010 federal income tax for a single person with taxable income x dollars is f(x) dollars, where T is the function defi
Alika [10]

Part A

What is the 2010 federal income tax for a single person whose taxable income that year was 4000 dollars?

The function is

T(x)=0.1x

so

For x=4,000

substitute

T(x)=0.1*(4,000)

<h2>T(x)=$400</h2>

Part B

What is the 2010 federal income tax for a single person whose taxable income that year was 170000 dollars?

the function is

T(x)=0.28x-6,290.75

For x=170,000

substitute

T(x)=0.28*(170,000)-6,290.75

<h2>T(x)=$41,309.25</h2>

Part C

What is the taxable income for a single person whose 2010 federal income tax was 105000 dollars?

The function is

T(x)=0.28x-6,290.75

For T(x)=105,000

substitute

105,000=0.28x-6,290.75

solve for x

0.28x=105,000+6,290.75

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6 0
9 months ago
Use the values on the number line to find the sampling error.
pantera1 [17]
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Given a number line with the point \bar{x}=26.43 and the point \mu=24.67

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Anon25 [30]

Answer:

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Step-by-step explanation:

The first step in solving this problem is to determine which trig function applies.  The diagram shows that this triangle is a right triangle, that side x is opposite the 25-degree angle, and that the hypotenuse has a length of 18 cm.  

The sine function of an angle Ф is defined as the ratio of the opposite side to the hypotenuse.  In this case, sin Ф (or sin 25 degrees) equals x/(18 cm).

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To solve for x, multiply both sides of the most recent equation, above, by (18 cm).  The following results:  (18 cm)(sin 25 degrees) = x.

Next, use a calculator to find the value of sin 25 degrees:  It is 0.4226.

Then the desired value of x is (18 cm)(0.4226), or x = 7.61 cm.  This should be rounded off to x = 8 cm to reflect the level of accuracy of the given 18 cm.

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