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4 years ago

Determine the interval on which the function is constant

Mathematics

1 answer:

KIM [24]4 years ago

5 0

(-2,2)

Just took the quiz, this is 100% correct.

Please mark brainliest! :)

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The diameter of a truck wheel is 56.5 inches. What is the circumference of<br> the wheel?

Ad libitum [116K]

Answer: 177.4999849 , or 56.5pi

Step-by-step explanation:

You simply divide the diameter by 2 to get the radius (28.25) and then plug into the circumference equation, 2*pi*r = Circumfrence.

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3 years ago

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Solve -3 = x + x + x.

kozerog [31]

-3 = x + x + x
-3 = 3x
-3/3 = x
x = -1

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3 years ago

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the performance score of 10 adults is recorded, and the results are 83 87 90 92 93 100 104 111 115 121 find the standard deviati

luda_lava [24]

Answer:

The standard deviation of the data set is $\sigma = 12.7906$ .

Step-by-step explanation:

The Standard Deviation is a measure of how spread out numbers are. Its symbol is σ (the greek letter sigma)

To find the standard deviation of the following data set

$\begin{array}{cccccccc}83&87&90&92&93&100&104&111\\115&121&&&&&&\end{array}$

we use the following formula

$\sigma = \sqrt{ \frac{ \sum{\left(x_i - \overline{X}\right)^2 }}{n-1} }$

Step 1: Find the mean $\left( \overline{X} \right)$ .

The mean of a data set is the sum of the terms divided by the total number of terms. Using math notation we have:

$Mean = \frac{Sum ~ of ~ terms}{Number ~ of ~ terms}$

$Mean = \frac{Sum ~ of ~ terms}{Number ~ of ~ terms}=\frac{83+87+90+92+93+100+104+111+115+121}{10} \\\\Mean = \frac{996}{10} =\frac{498}{5}=99.6$

Step 2: Create the below table.

Step 3: Find the sum of numbers in the last column to get.

$\sum{\left(x_i - \overline{X}\right)^2} = 1472.4$

Step 4: Calculate σ using the above formula.

$\sigma = \sqrt{ \frac{ \sum{\left(x_i - \overline{X}\right)^2 }}{n-1} } = \sqrt{ \frac{ 1472.4 }{ 10 - 1} } \approx 12.7906$

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3 years ago

How do I pick what subject I'm trying to get an answer for<br>

Lyrx [107]

Top left corner probably depends on what device you’re using

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3 years ago

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Find the percent change from 50 to 22

djyliett [7]

Answer:

Step-by-step explanation:

50 - 22 = 28

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3 years ago

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