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2 years ago

Seven is at most the quotient of a number d and -5. Write the sentence as an inequality.

Mathematics

1 answer:

Furkat [3]2 years ago

6 0

Answer:

7>d/5

Step-by-step explanation:

7 is "at most" so it has a less than sign bahaha ur welcome

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Solving Quadratic Equations using the Square Root Property

Afina-wow [57]

Answer:

$x = -2$ or $x = -5$

Step-by-step explanation:

You need to complete the square before you can take the square root of both sides.

$x^2 + 7x + 10 = 0$

Subtract 10 from both sides.

$x^2 + 7x = -10$

To complete the square, you need to add the square of half of the x-term coefficient to both sides.

The x-term coefficient is 7. Half of that is 7/2. Square it to get 49/4. Now we add 49/4 to both sides of the equation.

$x^2 + 7x + \dfrac{49}{4} = -10 + \dfrac{49}{4}$

$(x + \dfrac{7}{2})^2 = -\dfrac{40}{4} + \dfrac{49}{4}$

$(x + \dfrac{7}{2})^2 = \dfrac{9}{4}$

Now we use the square root property, if

$x^2 = k$ , then

$x = \pm \sqrt{k}$

$x + \dfrac{7}{2} = \pm \sqrt{\dfrac{9}{4}}$

$x + \dfrac{7}{2} = \pm \dfrac{3}{2}$

$x + \dfrac{7}{2} = \dfrac{3}{2}$ or $x + \dfrac{7}{2} = -\dfrac{3}{2}$

$x = -\dfrac{4}{2}$ or $x = -\dfrac{10}{2}$

$x = -2$ or $x = -5$

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3 years ago

How do I write 125% in simplest form

Lera25 [3.4K]

Answer:

The answer is 5/4 in fraction form and 1.25 decimal form

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2 years ago

This figure is made up of two rectangular prisms.

Crazy boy [7]

3•2•7=42•2=84
12•10•7=840
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Answer:

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Step-by-step explanation:

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Taya2010 [7]

B and C (I think they are the same)

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