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Illusion [34]
3 years ago
11

HELPPPPPPPPPPPPPPPPPPP!!!!!!!!!!

Mathematics
2 answers:
raketka [301]3 years ago
6 0
Answer is:
x ≥ -18/5

2+4/9x ≥ 4+x
4/9x-x ≥4-2
4/9x-9/9x ≥2
- 5/9x ≥2 multiple by 9
-5x ≥2•9
-5x ≥18
x ≥ -5/18
Anika [276]3 years ago
3 0

Answer:

Step-by-step explanation:

2 + 4x/9 ≥ 4 + x

4x/9  ≥ 2 + x                 - 2 from both sides

4x ≥ 18+ 9x                   x 9 both sides

-18 ≥ 5x                         subtracted 18 and 4x from both sides

-18/5 ≥ x                        divided both sides by 5

    -18/5 is greater than x     thus x is less than -18/5

x  ≤ -18/5   <--------------  Answer is 1    

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sesenic [268]

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  1. C) x = plus/minus 11
  2. B) No real solutions
  3. C) Two solutions
  4. A) One solution
  5. The value <u>  18  </u> goes in the first blank. The value <u>  17  </u> goes in the second blank.

========================================================

Explanations:

  1. Note how (11)^2 = (11)*(11) = 121 and also (-11)^2 = (-11)*(-11) = 121. The two negatives multiply to a positive. So that's why the solution is x = plus/minus 11. The plus minus breaks down into the two equations x = 11 or x = -11.
  2. There are no real solutions here because the left hand side can never be negative, no matter what real number you pick for x. As mentioned in problem 1, squaring -11 leads to a positive number 121. The same idea applies here as well.
  3. The two solutions are x = 0 and x = -2. We set each factor equal to zero through the zero product property. Then we solve each equation for x. The x+2 = 0 leads to x = -2.
  4. We use the zero product property here as well. We have a repeated factor, so we're only solving one equation and that is x-3 = 0 which leads to x = 3. The only root is x = 3.
  5. Apply the FOIL rule on (x+1)(x+17) to end up with x^2+17x+1x+17 which simplifies fully to x^2+18x+17. The middle x coefficient is 18, while the constant term is 17.
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Are the following expressions equivalent 26-(-26) and 26+(-26)
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Answer:

No.

Step-by-step explanation:

They are not because the left side is 52, while the right side is 0.

5 0
3 years ago
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