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Tom [10]
3 years ago
10

For which Inequality would x= 4.5 not be a solution?

Mathematics
1 answer:
maxonik [38]3 years ago
4 0

Answer:

12-28

Step-by-step explanation:

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The diffrence between the roots of the equation 2x^2-5x+c=0 is 0.25 find c
kumpel [21]

Answer:

  • c = 3.09375

Step-by-step explanation:

<u>Standard for of quadratic equation:</u>

  • ax² + bx + c = 0

<u>We have </u>

  • 2x² - 5x + c = 0

<u>Sum of the roots </u>

  • x₁ + x₂ = - b/a = -(-5)/2 = 2.5

<u>Product of the roots </u>

  • x₁x₂ = c/a = c / 2

<u>We have:</u>

  • x₁ - x₂ = 0.25

<u>The square of the above is:</u>

  • (x₁ - x₂)² = (x₁ + x₂)² - 4x₁x₂

<u>Substitute known values and solve for c:</u>

  • 0.25² = (2.5)² - 4(c/2)
  • 2c = 6.25 - 0.0625
  • 2c = 6.1875
  • c = 3.09375
6 0
3 years ago
SOME ONE PLEASE HELP!! step by step explanation
leva [86]

2.) 4y = 2y - 10 - 2

--> 4y = 2y - 8 --> 4y - 2y = -8 --> 2y = -8

So y = -4.

3.) 6x - 9x - 4 = -2x - 2

Combine like terms:

--> -3x - 4 = -2x - 2

Isolate x ---> -3x - (-2x) = -2 - (-4)

----> -x = 2

So x = -2

4.) -2(2x + 3) = -4(x + 1) - 2

--> -4x - 6 = -4x - 4 - 2

Combine like terms ---> -4x - 6 = -4x - 6

This equation has many possible solutions.

5.) 3(x + 2) = -5 - 2(x - 3)

--> 3x + 6 = -5 - 2x + 6

Combine like terms ---> 3x + 6 = -2x + 1

----> 3x + 2x = 1 - 6

-----> 5x = -5

So x = -1.

6.) 2(x - 3) = \frac{1}{2}(4x - 12)

Distribute ---> 2x - 6 = 2x - 6

This equation has many possible solutions.

4 0
3 years ago
What is 30% of 500 days?
valkas [14]

30% of 500 days is 150.

You'll change your percent into a decimal that will leave you with 0.30.

Next, multiply 0.30 by 500.

Your answer will show 150.

5 0
3 years ago
Read 2 more answers
Pleas help in this too!!!!!!
Naddika [18.5K]
X=64
Opposite angles are congruent
8 0
3 years ago
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How many sixes are equal to double 27?
Phantasy [73]

Answer:

its not sixes theres 4 sixes equal 24 so there is no answer

Step-by-step explanation:

can i have brainliest pls

6 0
2 years ago
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