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butalik [34]
3 years ago
8

Which value is a discontinuity of x^2+7x+1/x^2+2x-15? x=-1 x=-2 x=-5 x=-4

Mathematics
1 answer:
dsp733 years ago
6 0
\dfrac{x^2+7x+1}{x^2+2x-15}=\dfrac{x^2+7x+1}{(x+5)(x-3)}

which is undefined when x=-5 or x=3. The answer is then the third choice.
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Step-by-step explanation:

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Barbara is deciding between Banquet Chefs and CeCe's Catering to cater an awards banquet. Barbara needs to choose the company th
zmey [24]

Answer:

In this scenario you should use chefs if you have less than 55 people and you should use cece's if you have more than 55 people.  

Step-by-step explanation:

To find out which one will be cheaper you need to know where they intersect, to do this you need to set up a system of equations.

y=28x+590 (chefs)

y=31x+425 (cece's)

to know where they intersect you need to make the y=0

28x+590=31x+425

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subtract the x from each side

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In this scenario you should use chefs if you have less than 55 people and you should use cece's if you have more than 55 people.  

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