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romanna [79]
4 years ago
10

Today's temperature is 3 degrees warmer than yersterday's temperature t . write an expression for today's temperature

Mathematics
1 answer:
vredina [299]4 years ago
7 0
The formula would be t + 3.
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How do I find if this type of equation has one solution two solutions or no solution 5x^2+14=19 I tried using the b^-4ac method
mash [69]

Answer:

x = 5 and x = -19

Step-by-step explanation:

You're on the right track.  It's the "discriminant" that tells you what you want to know here.  Before starting, arrange the terms of your quadratic in descending orders of x:  5x^2 + 14x - 19 = 0 (Note that I assumed you meant 14x instead of just 14).

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You are referring to the "quadratic formula."  It states this:

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x = -----------------------

               2a                                        

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      -14 ± √( 14² - 4[5][-19] )        -14 ± √(196 - 4[5][-19] )        -14 ± √576

x = ----------------------------------- = ---------------------------------- = ----------------------

                 2(10)                                 20                                      20

This comes out to:

x = (-14 + 24) / 2      and     x = (-14 - 24) / 2

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x = 5 and x = -19

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   So, divide 4000cents by 25 to obtain the number of quarters in that amount of dollars;

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