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Hunter-Best [27]
3 years ago
9

Solve the equation for x, where x is a real number (5 points): -11x^2 + 5x - 3 = 0

Mathematics
1 answer:
fenix001 [56]3 years ago
7 0
To find the solutions to this equation, we can apply the quadratic formula. This quadratic formula solves equations of the form ax^2 + bx + c = 0
                   x = [ -b ± √(b^2 - 4ac) ] / (2a)
                   x = [ -5 ± √((5)^2 - 4(-11)(-3)) ] / ( 2(-11) )
                   x = [-5 ± √(25 - (132) ) ] / ( -22 )
                   x = [-5 ± √(-107) ] / ( -22)
Since we conclude that √-107 is nonreal, the answer to this question is that there are no real solutions.
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Answer:

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420 s = 7 mins

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3 years ago
Robin earned $4,581 in 9 weeks. How much does he earn per week?
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Which expressions represent the difference of exactly two expressions? Choose 3 answers: Choose 3 answers: (Choice
Ket [755]

Solution

To find out which expressions represent the difference of exactly

two expressions

a) 6(x+7) - 2

This can be simplified as

6x + 42 - 2

6x + 40

Clearly this does not represent difference of the two

expressions .


b) -2j

Clearly this represents a single expression , this does not represent

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Here we have 2 different expressions 4f and 2g

Difference of these 2 expressions are 4f - 2g

Hence , this option represent difference of exactly two

expression


d) 3xyz - 10

3xtz - 10 represnts a single expression

Here we have a single expression

Therefore it does not represent difference of exactly 2

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3 0
3 years ago
Solve the following system of equations by graphing. 3x - 2y = -6 - 3x - y = -12​
MA_775_DIABLO [31]

9514 1404 393

Answer:

  (x, y) = (2, 6)

Step-by-step explanation:

See the attachment for the graph.

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