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3 years ago

Which of the following equations does NOT have a soulution of x=o.5 ? 10x – 5 = -2x + 1

Mathematics

1 answer:

zaharov [31]3 years ago

5 0

The one equation that doesn’t have a solution of x=0.5 is D) 3x+3=-2x+13

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The correct answer is 15:25

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3 years ago

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3 years ago

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jolli1 [7]

Answer:

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4 years ago

Read 2 more answers

A) x = -2<br> B) y =2<br> C) y= -2

LenKa [72]

Answer:

Step-by-step explanation:

This is a positive parabola so it opens upwards. The equation for the directrix of this parabola is y = k - p. k is the second number in the vertex of the parabola which is (0, 0), but we need to solve for p.

The form that the parabola is currently in is

$y=a(x-h)^2+k$ so that means that $a=\frac{1}{8}$ . We can use that to solve for p in the formula

$p=\frac{1}{4a}$ so

$p=\frac{1}{4(\frac{1}{8}) }$ which simplifies to

$p=\frac{1}{\frac{1}{2} }$ which gives us that

p = 2. Now to find the directrix:

y = k - p becomes

y = 0 - 2 so

y = -2, choice A.

6 0

3 years ago