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Mila [183]
3 years ago
14

The local Toyota dealership pays an average of $9,260 with a standard deviation of $1099 for used car trade-ins. They sell new c

ars at an average of $28,451 with a standard deviation of
$3392. Assume independence of new car and trade-ins. What are the mean and standard
deviation of the revenue this dealership should expect when a person trades in a car and purchases a new one?

Mathematics
1 answer:
Flauer [41]3 years ago
3 0

Answer:

B i think

Step-by-step explanation:

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6 0
3 years ago
Determine if the sequence is arithmetic. If it is, find the common difference.
mr_godi [17]

Answer:

In an arithmetic sequence, the difference between any two consecutive terms must always be the same number, which is known as the common difference.

So we just need to take different pairs of consecutive terms and see if their difference is always the same:

1) The differences are:

32 - 35 = -3

29 - 32 = -3

26 - 29 = -3

So yes, this is an arithmetic sequence and the common difference is -3

2) The differences are:

-23 - (-3) = -20

-43 - (-23) = -20

-63 - (-43) = -20

This is an arithmetic sequence, and the common difference is -20

3) The differences are:

-64 -(-34) = -30

-94 -(-64) = -30

-124 -(-94) = -30

This is an arithmetic sequence and the common difference is -30

4) The differences are:

-40 -(-30) = -10

-50 - (-40) = -10

-60 - (-50) = -10

This is an arithmetic sequence and the common difference is -10

5) The differences are:

-9 - (-7) = -2

-11 - (-9) = -2

-13 - (-11) = -2

This is an arithmetic sequence, and the common difference is -2

6) The differences are:

14 - 9 = 5

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7 0
3 years ago
Write the solution to the given inequality in interval notation. -
vampirchik [111]

Answer:

Step-by-step explanation:

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5 0
2 years ago
Read 2 more answers
Ifā=r, then which of the following are true statements?
olga_2 [115]

Answer:

B. a = rⁿ

C. a¹/ⁿ = r

Step-by-step explanation:

ⁿ√a = r

The above expression can be simplified as follow:

1. ⁿ√a = r

Recall:

ⁿ√a = a¹/ⁿ

Therefore,

a¹/ⁿ = r

2. ⁿ√a = r

Take the n square of both side

(ⁿ√a)ⁿ = rⁿ

(a¹/ⁿ)ⁿ = rⁿ

a = rⁿ

7 0
3 years ago
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