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creativ13 [48]
2 years ago
10

choose a non-piecewise function f(x) such that it’s Domain is all x≤5. Find the values of your function for x={−2,−1,0,1,2,3,4,5

} then graph the function

Mathematics
1 answer:
iren2701 [21]2 years ago
3 0

Answer:

f(x) = √(5-x)

Step-by-step explanation:

The square root is only defined for non-negative arguments. Here, we give it an argument that is only non-negative for x ≤ 5, thus satisfying the requirement for your function. The attached shows a table of values and a graph of it.

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Simplify the expression using the exponent properties 5 ^ −4 x 5^ −3
vodka [1.7K]

Answer:

5^{-7} or 0.0000128

Step-by-step explanation:

Add the exponents together

-4+-3=-7

3 0
3 years ago
Stephanie has $152 in the bank she with drawl $20 then she deposits $84 write an addition expression to represent this situation
Paraphin [41]

152+(-20)+84=

236+(-20)=

236-20=

216

3 0
3 years ago
A study reported that the average age of menarche of girls entering the first year class of a small American private college in
Verizon [17]

Answer:

Null hypothesis: \mu = 11.89

Alternative hypothesis: \mu \neq 11.89

And we want to test this with a confidence interval:

The confidence interval for the mean is given by the following formula:

\bar X \pm t_{\alpha/2}\frac{s}{\sqrt{n}}   (1)

After conduct the interval of 95% for the true mean we got: (11.59, 13.31)

And for this case the confidence interval contains the value of 11.89, so then we have enough evidence to FAIL to reject the null hypothesis at 5% of significance that the true mean is 11.89.

Step-by-step explanation:

Previous concepts

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".

The margin of error is the range of values below and above the sample statistic in a confidence interval.

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

\bar X=12.98 represent the sample mean for the sample  

\mu population mean (variable of interest)

s represent the sample standard deviation

n=30 represent the sample size  

Solution to the problem

For this case we want to test the following hypothesis:

Null hypothesis: \mu = 11.89

Alternative hypothesis: \mu \neq 11.89

And we want to test this with a confidence interval:

The confidence interval for the mean is given by the following formula:

\bar X \pm t_{\alpha/2}\frac{s}{\sqrt{n}}   (1)

After conduct the interval of 95% for the true mean we got: (11.59, 13.31)

And for this case the confidence interval contains the value of 11.89, so then we have enough evidence to FAIL to reject the null hypothesis at 5% of significance that the true mean is 11.89.

4 0
3 years ago
Can somebody please help me order the numbers from greatest to least
meriva
|16| , | -15| , |-14|, |13|
3 0
3 years ago
Read 2 more answers
Pls help me !!
kkurt [141]

Step-by-step explanation:

area of circle - pie x r x r

22/7 x 7/2 x 7/2 ( 7 as diameter because it's straight line passing through centre)

77/2 is the sq inches

3 0
2 years ago
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