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2 years ago

11

The arithmetic sequence from the previous problem is 8. 7, 7. 3, 5. 9, 4. 5, 3. 1,. . . . What is the common difference, d, of t

his sequence? d =.

1 answer:

o-na [289]2 years ago

3 0

I think 8 is again maybe its true

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Common ratio of 135,45, 15, 5,

olchik [2.2K]

9514 1404 393

Answer:

1/3

Step-by-step explanation:

If the ratio is common, you can choose any successive numbers to compute it. Smaller numbers may be more familiar. The ratio is ...

5/15 = 1/3

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2 years ago

-3x^2 – 24x – 13 = -13

Fudgin [204]

$\begin{gathered} -3x^2-24x-13=-13 \\ \text{ Express it as:} \\ 3x^2+24x+26=0 \\ 3x^2+24x=-26 \\ 3(x^2+8x+16)=?-26 \\ 3(x+4)^2=48-26 \\ 3(x+4)^2=22 \end{gathered}$

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1 year ago

Britton rotated trapezoid ABCD 180° on the coordinate plane. If angle B is 20° and angle D is 90°, what is the degree measuremen

olasank [31]

Answer:

The answer is 20 degrees

Step-by-step explanation:

A trapezoid is a quadrilateral with four angles and the sum of the four angles is 360 degrees.

Britton rotated the trapezoid ABCD 180º, but we were not told that he tampered with the angles size or shape, we can now agree that it is still the same trapezoid that was rotated without any alterations in angles, size and shape.

Since we've been given that the angle B is 20º, and the measurement was not altered when rotating the trapezoid. Therefore the angle B' will also be 20º.

I hope this helps.

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Vika [28.1K]

Answer:

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Step-by-step explanation:

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