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grigory [225]
3 years ago
10

7.25% sales tax on a $89.99 cable modem​

Mathematics
1 answer:
melomori [17]3 years ago
8 0

Answer:

Sales tax is: $6.52

Step-by-step explanation:

You must multiply $89.99 by 0.0725 (this is how you find sales tax, moves decimal two places to the left)

When you multiply that, you get 6.524275, and you must round to 6.52. This is your sales tax.

The total price (with sales tax included) is: $96.51

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3 years ago
If g(x)is the inverse of f(x) and f (x) = 4 x + 12, what ig(x)
Fynjy0 [20]

Answer:

The inverse of a given function

d) g(x) = \frac{1}{4} x - 3

Step-by-step explanation:

<u><em>Explanation:-</em></u>

Given that f(x) = 4x + 12

  let y = 4 x + 12

     4 x = y - 12

        x = \frac{y-12}{4}

        x = \frac{1}{4} y - 3      

we know that   y = f(x)

                   ⇒  x = f⁻¹(y)

      (f^{-1} y) = \frac{1}{4} y - 3

Put  replace 'y' in 'x'

    (f^{-1} x) = \frac{1}{4} x - 3

<u><em>Final answer</em></u><em>:-</em>

The inverse of a given function

g(x) = \frac{1}{4} x - 3

3 0
3 years ago
Read 2 more answers
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