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Aneli [31]
3 years ago
10

A CD usually sells for $18.00. If the CD is 30% off, and sales tax is 6%, what is the total price of the CD, including tax?

Mathematics
1 answer:
natali 33 [55]3 years ago
6 0
Ok first find out what it will cost after the 30% discount

18*.30=
$5.40 discount 
$18.00-$5.40=
$12.60
Now lets figure out the sales tax
$12.60*.06=
76 cents
total price including tax is $13.36
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A safe has a 4-digit lock code that does not include zero as a digit and no digit is repeated. What is the probability of a lock
Margarita [4]

Answer:

A. 9

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C. 4

D. 24

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8 0
2 years ago
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A) Use the definition of Laplace transform to find L{f }. (Do the integrals.) For what values of s is L{f } defined?f(t) = (2t+1
kiruha [24]

For the given function f(t) = (2t + 1) using definition of Laplace transform the required solution is L(f(t))s = [ ( 2/s²) + ( 1/s) ].

As given in the question,

Given function is equal to :

f(t) = 2t + 1

Simplify the given function using definition of Laplace transform we have,

L(f(t))s = \int\limits^\infty_0 {f(t)e^{-st} } \, dt

          =  \int\limits^\infty_0[2t +1] e^{-st} dt

          = 2\int\limits^\infty_0 te^{-st} + \int\limits^\infty_0e^{-st} dt

         = 2 L(t) + L(1)

L(1) = \int\limits^\infty_0e^{-st} dt

     = (-1/s) ( 0 -1 )

     = 1/s , ( s >  0)

2L ( t ) = 2\int\limits^\infty_0 te^{-st}

        =  2[t\int\limits^\infty_0 e^{-st} - \int\limits^\infty_0 ({(d/dt)(t) \int\limits^\infty_0e^{-st} \, dt )dt]

        =  2/ s²

Now ,

L(f(t))s = 2 L(t) + L(1)

          = 2/ s² + 1/s

Therefore, the solution of the given function using Laplace transform the required solution is L(f(t))s = [ ( 2/s²) + ( 1/s) ].

Learn more about Laplace transform here

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8 0
11 months ago
Can someone help quick
9966 [12]

Step-by-step explanation:

22+2x+8= x+20

2x+30=x+20

x+30=20

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answer is -10

3 0
2 years ago
0.66x10 to the 3rd power
Bas_tet [7]
The answer to this is 660
4 0
2 years ago
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Please help right away
Ilya [14]

Answer:

im unsure

Step-by-step explanation:

either 340 or 1152 vehicles

7 0
3 years ago
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