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maria [59]
3 years ago
5

State the value of the discriminant for the equation, 3x^2 + 7x + 3 = 0

Mathematics
1 answer:
Irina-Kira [14]3 years ago
7 0

Answer: 13

Step-by-step explanation:

If you remember the quadratic equation formula;

x=\frac{-b\frac{+}{}\sqrt{b^2-4ac}  }{2a}

You can easily extract what is under the root to find the discriminant.

b^2-4ac=?\\

a = 3

b = 7

c = 3

(7)^2-4(3)(3)\\49-36=13

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No, it is an irrational number. It repeats

No, it is an irrational number because it does not terminate/end
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Can two vertical angles form a linear pair?
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4 years ago
The Quadratic Equation c² + 6c+ 8 = 0<br><br> Show work please
Bad White [126]
The formula for the quadratic formula is x (c in this case) = (-b(+/-)√(b²-4ac))/2a
This is used for an equation in standard quadratic form: ax² + bx + c = 0
1.) Put it in the correct form, if not already in it.
Ex. c² + 6c + 8 = 0
2.) Identify each part of the equation:
a = 1 (the leading coefficient), b = 6 (the coefficient in front of the second variable), c = 8
3.) Plug in each variable answer
c = (-6(+/-)√(6²-4(1)(8))/2(1)
4.) Simplify
c = (-6(+/-)√(36-(4*8))/2
c = (-6(+/-)√(36-32))/2
c = (-6(+/-)√(4))/2
c = (-6(+/-)2)/2
*Here, the equation splits in two. It becomes:
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*Simplify again:
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The answers c = -2 and c = -4 would solve the given equation.
Hope this helps! :)
6 0
4 years ago
Read 2 more answers
An aircraft has a total time in service of 468 hours. The Airworthiness Directive given was initially complied with at 454 hours
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Answer:

440 hours

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Hours of the second cycle= Total time in service- time Airworthiness Directive

=468-454=14

Then we have 14 hours of service and need to accumulate the rest to complete 454. It is

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Then we need to accumulate 440 hours additional to complete the Airworthiness Directive .

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3 years ago
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The answer is root!!
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