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Dennis_Churaev [7]
3 years ago
6

An item has a listed price for $80 if sales tax rate is 3% how much is sales tax in dollars

Mathematics
1 answer:
Greeley [361]3 years ago
6 0

Answer: The sales tax would be $2.40

Step-by-step explanation:

Another way of writing any percent would be diving that percent by 100, so 3% would be 0.03 4% would be 0.04 and so forth.

All you have to do is multiply 80 by the decimal of the percent

80 * 0.03 =2.4 or $2.40

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rodikova [14]
\bf f(x)=x^4-12x^3+46x^2-60x+25\\\\
-------------------------------\\\\
\cfrac{df}{dx}=4x^3-36x^2+92x-60\implies 0=4x^3-36x^2+92x-60
\\\\\\
0=x^3-9x^2+23x-15\impliedby \textit{doing some synthetic division with 5}
\\\\\\
0=(x^2-4x+3)(x-5)\implies 0=(x-3)(x-1)(x-5)\\\\
-------------------------------\\\\
\begin{cases}
f(1)=0\leftarrow minimum&1,0\\
f(3)=16\leftarrow maximum&3,16\\
f(5)=0\leftarrow minimum&5,0
\end{cases}\impliedby \textit{3 extrema, locals and globals}
4 0
3 years ago
What is the mean?<br> 1 6 1 10 5 5 7
algol13

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5

Step-by-step explanation:

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3 years ago
Brandon is half as old as his brother Ryan.Ryan is one eight the age of his fatherb if their father is 2 years old. How old are
Agata [3.3K]
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A boy is 6 years older than his sister. In three years time he will be twice her age. What
Masja [62]

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Find the domain of the function.<br><br><br><br> f(x) = -5x + 3
Sedaia [141]

Enter a problem...

Calculus Examples

Popular Problems Calculus Find the Domain and Range f(x)=5x-3

f

(

x

)

=

5

x

−

3

The domain of the expression is all real numbers except where the expression is undefined. In this case, there is no real number that makes the expression undefined.

Interval Notation:

(

−

∞

,

∞

)

Set-Builder Notation:

{

x

|

x

∈

R

}

The range is the set of all valid

y

values. Use the graph to find the range.

Interval Notation:

(

−

∞

,

∞

)

Set-Builder Notation:

{

y

|

y

∈

R

}

Determine the domain and range.

Domain:

(

−

∞

,

∞

)

,

{

x

|

x

∈

R

}

Range:

(

−

∞

,

∞

)

,

{

y

|

y

∈

R

}

3 0
2 years ago
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