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lana [24]
3 years ago
5

I know 5his is easy for yall but for me is not I need some help please I'm giving brainlist.​

Mathematics
1 answer:
Anna71 [15]3 years ago
4 0

Answer:

$2.99

Step-by-step explanation:

Given parameters:

Selling price = $19.95

Discount percentage  = 15%

Unknown:

Amount of discount = ?

Solution:

To find the amount of discount, ;

   Discount amount  = discount percentage x selling price

  Discount amount  = \frac{15}{100} x 19.95

  Discount amount  = $2.99

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Step-by-step explanation:

3 0
3 years ago
Hi, can someone please help, and possibly explain the answer please.
mr_godi [17]

Answer:

x=\frac{-(-2)\±\sqrt{(-2)^2-4(3)(0)} }{2(3)}

Step-by-step explanation:

Quadratic formula: x=\frac{-b\±\sqrt{b^2-4ac} }{2a} when the equation is 0=ax^2+bx+c

The given equation is 1=-2x+3x^2+1. Let's first arrange this so its format looks like y=ax^2+bx+c:

1=-2x+3x^2+1

1=3x^2-2x+1

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1-1=3x^2-2x+1-1\\0=3x^2-2x+0

Now, we can easily identify 3 as a, -2 as b and 0 as c. Plug these into the quadratic formula:

x=\frac{-b\±\sqrt{b^2-4ac} }{2a}\\x=\frac{-(-2)\±\sqrt{(-2)^2-4(3)(0)} }{2(3)}

I hope this helps!  

8 0
3 years ago
Determine the value for b assuming that the two horizontal lines displayed are parallel.
Neko [114]

Answer:

29

Step-by-step explanation:

8 0
3 years ago
How do I simplify this
inna [77]
The calculator came up with this -23.399156493247038795316239455591
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Find the value of x. If your answer is not an integer express it in simplest radical form.
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