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max2010maxim [7]
3 years ago
8

50 points!!! What is the common ratio of the geometric sequence below? –2, 4, –8, 16, –32, ...

Mathematics
1 answer:
vekshin13 years ago
6 1

Answer:

-2

Step-by-step explanation:

each number is being multiplied by -2 to get to the next number

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What are the coordinates of R' after a dilation by a scale factor of 3, centered at the origin, followed by the translation (x,
emmainna [20.7K]

9514 1404 393

Answer:

  C.  (9, 18)

Step-by-step explanation:

Given R(3, 5), a dilation by a factor of 3 will multiply each coordinate to give ...

  (9, 15)

Then the translation up by 3 will give you the image coordinates ...

  (x, y) ⇒ (x, y+3)

  (9, 15) ⇒ (9, 15 +3) = (9, 18)

The coordinates of R' are (9, 18), matching choice C.

_____

<em>Comment on multiple choice answers</em>

As it often does, here it works to "guess" the answer that has the coordinates that are most-repeated. An x-coordinate of 9 is part of 3 answer choices; a y-coordinate of 18 is the only repeated value in the answer choices. If you were to guess, an appropriate guess would be (9, 18). That happens to be correct in this case.

8 0
3 years ago
Find n(A) for the set.
charle [14.2K]

Answer:

b.n(A)=1800

Step-by-step explanation:

b.n(A)=1800

5 0
2 years ago
PLEASE!!!! I NEED AN ANSWER
MaRussiya [10]

Step-by-step explanation:

I believe this would be A or D

6 0
2 years ago
How do you find area and the one on the right is 27
balu736 [363]

Step-by-step explanation:

First, you have to find what's the height of the shape and you also have to find the base. Then you multiply those together. If there 2 sides, multiply 2 and you will golet your answer.

3 0
3 years ago
Identify this sequence: 5, 15, 45, 135, …<br> Arithmetic<br> Geometric<br> Neither
user100 [1]

Answer:

5 * 2 is 10 + 5 and then 15 * 2 + 15 45 * 2 + 45

Step-by-step explanation:

times it by to add that number

3 0
3 years ago
Read 2 more answers
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