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2 years ago

For which equations below is x = -3 a possible solution? Select three options.

Mathematics

2 answers:

USPshnik [31]2 years ago

7 0

Answer:

Only -lxl = -3 works

Step-by-step explanation:

The other options don't work because they all have numbers inside of the absolute value brackets. You would always get a positive end value when the absolute value equation is applied.

The last one is the only one that works because the negative is outside of the absolute value bracket. Therefore, if you plug in 3 for x, it will give you -3.

yaroslaw [1]2 years ago

4 0

Answer:

-|x|=-3

|x|=-3

|-x|=-3

Step-by-step explanation:

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Effectus [21]

Solution-

The price of the snow thrower = $1980

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A. How much is the down payment

Down payment amount is, 10% of $1980, i.e

$=1980\times \dfrac{10}{100}=\dfrac{1980}{10}=\$198$

B. What is the total amount of the monthly payments

A monthly payment of $116 for 18 months, i.e

$=116\times 18=\$2088$

C. How much did Jean pay for the snow thrower on the installment plan

It is the sum of down-payment and total monthly payments, i.e

$=198+2088=\$2286$

D. What is the total finance charge

It the difference between the original price and the amount paid by Jean, i.e

$=2286-1980=\$306$

E. If Jean models her payment plan as an arithmetic sequence, give the first term a1 and the common ratio d

As he paid the down-payment of $198 and then a constant monthly payment of $116, so

The first term = 198

common difference = 116

The A.P. series will be, 198, 314, 430, 546, 662,.................., 2286

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