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goldfiish [28.3K]
3 years ago
14

Solve this quadratic equation using the quadratic formula. 2x2 - 10x + 7 = 0

Mathematics
2 answers:
frez [133]3 years ago
8 0

Answer:

Step-by-step explanation:

2x^2-10x+7         A=1, B=-10. C=7

-(-10)±√-10^2-4(1)(7)

------------------------------

2(1)

10±√100-28

----------------

2

10±√72

-----------

2

<u>10±8.485281374</u>

         2

<u>10+8.485281374 </u>=9.24

             2

<u>10-8.485281374</u> =0.76

          2

alexgriva [62]3 years ago
5 0

Answer:

x= 5/ 2 + 1/2  √11

or  x= 5/ 2 + −1/ 2 √11

Step-by-step explanation:

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I’m sorry but need help
arsen [322]

These are pretty easy once you get the concept.

think of <em>random letter</em> (x) as the term y, so in the case of p(x)=-3+4x, its just asking what is y when x equals all those values.

so p(-2) = -3 + 4(-2), since its asking to plug in -2 for x, which equals -11

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2 years ago
(2/3)^2 without exponents
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Answer:

\frac{4}{9}

Step-by-step explanation:

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Hope that helps :)

6 0
3 years ago
a ferry is traveling at a constant speed back to the dock, as shown in the graph. which function represents the relationship bet
horsena [70]

Answer: y = -35x + 105

Step-by-step explanation:

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The definition of slope is

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