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horsena [70]
3 years ago
13

Lic/activity/6000001/assessment

Mathematics
1 answer:
grin007 [14]3 years ago
7 0

Given:

The exponential function is:

R(x)=(5.3)^x

To find:

The domain of the given exponential function.

Solution:

We know that the general form of an exponential function is:

f(x)=ab^x

Where, a is the initial value and b is growth/decay factor.

This function is defined for all real values of x, so the domain of these type of functions is the set of all real number.

We have,

R(x)=(5.3)^x

Here, a is 1 and b is 5.3. This function is defined for all real values of x

Therefore, the domain of these type of functions is the set of all real number or it can be written as (-\infty,\infty).

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The Internal Revenue Service (IRS) provides a toll-free help line for taxpayers to call in and get answers to questions as they
sukhopar [10]

Answer:

From the result of the one-tailed z-test, we can conclude that the mean waiting time is not significantly less than the the 15 minute claim by the taxpayer advocate.

Step-by-step explanation:

Sample size = 50

Mean waiting time = 13 minutes

Standard deviation = 11 minutes

We need to perform one hypothesis test that the actual mean waiting time turned out to be significantly less than the 15-minute claim made by the taxpayer advocate.

The null hypothesis would be that there is no significant difference.

H₀: μ₀ = 15 minutes

The alternative hypothesis would be that the mean waiting time is indeed significantly less than the 15-minute claim by the taxpayer advocate.

Hₐ: μ₀ < 15 minutes.

This is evidently a one tail hypothesis test (we're investigating only in one direction; less than the claim). Hence, we can use the z-test

z = (x - μ)/σₓ

σₓ = (σ/√n) = (11/√50) = 1.556

z = (13 - 15)/1.556 = - 1.29

Using the z-table at significance level of 0.05.

p-value = 1 - 0.9115 (from the z-tables)

p-value = 0.0885

Since the p-value is more than the significance level (0.0885 > 0.05), we do not reject the null hypothesis.

Hence, we accept the null hypothesis and can conclude that the mean waiting time is not significantly less than the the 15 minute claim by the taxpayer advocate.

Hope this Helps!!!

4 0
3 years ago
How do you find the value of a ratio and what is the value of that ratio?
enot [183]

Answer:

Step-by-step explanation:

24/32=3/4

8 0
3 years ago
If z=13 which equation is true
Lady_Fox [76]
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5 0
1 year ago
Find the solutions to x^2-10+36=0
klemol [59]

Answer:

Only 6

Step-by-step explanation:

We need to factor the equation to find the solution.  TO factor we need to find what times what = 36, and what plus what equals -12.

-6 times -6 = 36

and -6 + -6 = -12

So this can be factored into

(x-6)(x-6)=0

We can find the solution by setting each parentheses equal to zero.

x-6 = 0

x = 6

So the only solution is 6

I attached an image that shows an example of factoring.

5 0
3 years ago
Equivalent ratios to 1:5?<br> Answers: 3:18, 3:15, 2:10, 4:22, 4:16. Help
snow_lady [41]
2:10 is equivalent. To get the answer you multiply 1 & 2 by their LCM (least common multiple) , which is 2, and that's how you get the answer, and to check to see if it's right just divide by 2 but if you know multiples of 1 and 5 then you could've easily looked at the answer choices to find your answer.

hopefully this helps
6 0
3 years ago
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