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HACTEHA [7]
3 years ago
5

Sibal started with $500 in a bank account that does not earn interest. In the middle of every month, she withdraws 15 of the acc

ount balance. Which recursive function rule models Sibal’s balance at the end of each month?
an=4/5⋅an−1 and a1=500 ​
an=500⋅an−1 ​ and a1=1/5
an=1/5⋅an−1 ​ and a1=500
an=500⋅an−1 and a1=4/5
Mathematics
1 answer:
Otrada [13]3 years ago
4 0
After every month's withdrawals, 4/5 of the original amount at the start of the month will remain. The amount at the start of every month will change. Thus:
an = 4/5 (an-1) ; where a1 = 500.
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larisa86 [58]

The image is attached with answer

<h3>What is a Quadrilateral ?</h3>

A quadrilateral is a polygon with four sides , four angles and four vertices.

It is given in the question that

Quadrilateral BGTS has vertices B (-3, 4), G (-1, 3), T (-1, 1), and S (-4, 2).

A graph has to be drawn of

its image after a translation along (5,0) and a reflection in the x-axis.​

The coordinates after translation and reflection is is B (8, -4), G (6, -3), T (6, -1), and S (7, -2).

The image is attached with the answer .

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6 0
2 years ago
What is the mean and mad of this data set?
larisa86 [58]

Answer:

The mean number of gerbils seen per day is 6.

The mean absolute deviation of the data is 2.29.

Step-by-step explanation:

The mean of a data set is the value that represents the entire data set. It is the average value.

The formula to compute the mean of a data set is:

\bar x=\frac{1}{n}\sum X

The mean absolute deviation (MAD) of a data set is the average distance amid each value and the mean. The MAD provides us with an idea about the deviation in the data set.

The formula to calculate the value of MAD is:

MAD=\frac{1}{n}\sum |x-\bar x|

The data set for the number of gerbils seen per day is:

S = {2, 3, 5, 7, 8, 8, 9}

Compute the mean of the data as follows:

\bar x=\frac{1}{n}\sum X

  =\frac{1}{7}\times [2+3+5+7+8+8+9]\\\\=\frac{1}{7}\times 42\\\\=6

The mean number of gerbils seen per day is 6.

Compute the mean absolute deviation of the data as follows:

MAD=\frac{1}{n}\sum |x-\bar x|

          =\frac{1}{7}\times [|2-6|+|3-6|+|5-6|+|7-6|+|8-6|+|8-6|+|9-6|]\\\\=\frac{1}{7}\times 16\\\\=2.2857\\\\\approx 2.29

Thus, the mean absolute deviation of the data is 2.29.

5 0
4 years ago
HELP FAST PLZ IM TIMED 99 PTS
matrenka [14]
Hello!

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4 0
3 years ago
Read 2 more answers
Martin's unpaid credit card balance was $1539.39. his APR is 13.2%. what is his new balance after he makes one new transaction f
irinina [24]
Given that <span>Martin's unpaid credit card balance was $1539.39 and his APR is 13.2%.

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The interest charge for the month is given by I=Pi, where P is the previous balance, i is the monthly interest rate.

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The balance after the monthly interest charge = $1,539.39 + $16.93 = $1,556.32

Therefore, the balance after the new transaction is given by $1,556.32 + $178 = $1734.32
4 0
3 years ago
e) What does the value of the mean absolute deviation tell you about the spread of the data? (2 points)
azamat

Answer:

The mean absolute deviation of a dataset is the average distance between each data point and the mean. It gives us an idea about the variability in a dataset. ... Step 2: Calculate how far away each data point is from the mean using positive distances.

5 0
3 years ago
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