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3 years ago

4. Find the mean absolute deviation (MAD) for the following data:

Mathematics

2 answers:

serious [3.7K]3 years ago

7 0

The MAD is 2.4861 (1repeating) I hope that helps :-) Good luck

vladimir1956 [14]3 years ago

7 0

2.26 is the Mean Absolute Deviation. This is found by finding the arithmetic mean of the dataset and finding the difference between each value and the arithmetic mean, these differences are then averaged to find the MAD.

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Is the following growth or decay? f(x)= 3(0.4)^x

Anna11 [10]

The graph is a decay

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3 years ago

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ICE Princess25 [194]

The correct answer here is A

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3 years ago

Which of the following graphs of exponential functions corresponds to a geometric sequence with a first term of 4 and a ratio of

ser-zykov [4K]

Answer: graph E.

A geometric sequence can be written as:

$a_{n} = a_{1} \cdot r^{(n - 1)}$

where:

a₁ = first term = 4

r = ratio = 0.5

Substituting the numbers, we have:

$a_{n} = 4 \cdot (\frac{1}{2})^{n-1}$

or else

$f(x) = 4 \cdot (\frac{1}{2})^{x - 1}$

This is an exponential function with base less than 1. Therefore, we can exclude graph C (which depicts a linear function), and graphs A and D (which depict an exponential function with base greater than 1).

In order to choose between graph B and E, let's evaluate the function in two different points:

$f(1) = 4 \cdot (\frac{1}{2})^{1 - 1} = 4$

$f(2) = 4 \cdot (\frac{1}{2})^{2 - 1} = 4 \cdot \frac{1}{2} = 2$

Therefore, we need to look for the graph passing through the points (1, 4) and (2, 2). That is graph E.

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3 years ago

Read 2 more answers

*WILL GIVE POINTS*

Nadusha1986 [10]

Answer:

2x, (x-2), (x+6)

Step-by-step explanation:

I just took the quiz on plato and I got it correct

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3 years ago

Recall that m(t) = (1/2)^t/h for radioactive decay, where h is the half-life. Suppose that a 500g sample of phosphorus-32 decays

katrin2010 [14]

The question is incomplete, here is the complete question:

Recall that m(t) = m.(1/2)^t/h for radioactive decay, where h is the half-life. Suppose that a 500 g sample of phosphorus-32 decays to 356 g over 7 days. Calculate the half life of the sample.

Answer: The half life of the sample of phosphorus-32 is $14.28days^{-1}$