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SVEN [57.7K]
2 years ago
12

A $50 dallor shirt is on sale for $42. What percent does the costermer save

Mathematics
1 answer:
PolarNik [594]2 years ago
4 0
The customer is saving 16% on the shirt
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Step-by-step explanation:

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Solve. Write your answer in interval notation.
lina2011 [118]

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(-∞, 3) or [11, ∞)

Step-by-step explanation:

subtract 4 from each side

2x < 6 .     or .         3x  ≥ 33

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make sure you have an OPEN DOT at 3 pointing to negative infinity and a CLOSED DOT at 11 pointing to positive infinity.  

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2 years ago
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Papessa [141]

Answer:

discriminant =0

1 real root

Step-by-step explanation:

The discriminant is b^2 -4ac  

when the equation is written in the form  ax^2 +bx+c

f(x) = 3x^2 +24x+48

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discriminant = 24^2 - 4(3)*(48)

                      =576-576

                        =0


If the discriminant >0  we have 2 real roots

if discriminant = 0  we have 1 real root

if discriminant <0 we have 2 complex roots

3 0
3 years ago
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