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2 years ago

How much tax would you pay on an item at 5% tax rate costing $75? (Round to the nearest cent)

Mathematics

2 answers:

Llana [10]2 years ago

6 0

Answer:

3.75

Step-by-step explanation:

Gelneren [198K]2 years ago

3 0

Answer:

$3.75

Step-by-step explanation:

All you are going to do is multiply .05 or 5% by 75.

.05 * 75 = 3.75

(So now you are going to add 3.75 to $75 because the tax is 3.75)

75 + 3.75 = $78.75

(So you would pay $3.75 in tax)

Hope this helped!!

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Find the values of P for which the quadratic equation 4x²+px+3=0?

klasskru [66]

<h3><u>Correct Questions :- </u></h3>

Find the values of P for which the quadratic equation 4x²+px+3=0 , provided that roots are equal or discriminant is zero .

<h3><u>Solution</u>:- </h3>

Let us Consider a quadratic equation αx² + βx + c = 0, then nature of roots of quadratic equation depends upon Discriminant (D) of the quadratic equation.

For equal roots

D = 0

$\quad\green{ \underline { \boxed{ \sf{Discriminant, D = β² - 4αc}}}}$

So,

$\sf{ β² - 4αc = 0}$

Here,

α = 4
β = p
c = 3

Now,

$\begin{gathered}\implies\quad \sf p²- 4 \times 4 \times 3 =0 \end{gathered}$

$\begin{gathered}\implies\quad \sf p²- 48 =0 \end{gathered}$

$\begin{gathered}\implies\quad \sf p²=48\end{gathered}$

$\begin{gathered}\implies\quad \sf p=±\sqrt{48}\end{gathered}$

$\begin{gathered}\implies\quad \sf p=±\sqrt{2 \times 2 \times 2 \times 2 \times 3} \end{gathered}$

$\begin{gathered}\implies\quad \sf p=± 2\times 2\sqrt{ 3 }\end{gathered}$

$\begin{gathered}\implies\quad \boxed{\sf{p=±4\sqrt{ 3 }}}\end{gathered}$

Thus, the values of P for which the quadratic equation 4x²+px+3=0 are-

4√3 and -4√3.

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2 years ago

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vodomira [7]

Answer:

Step-by-step explanation:

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Darla spent $120.37 on groceries in January, $108.45 in February, and $114.86 in March. What was the average monthly cost of Dar

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3241004551 [841]

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Bingel [31]

answer key

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Step-by-step explanation:

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