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Vladimir79 [104]
3 years ago
7

What is the common ratio for this sequence: 4, -16, 64, -256, ...

Mathematics
2 answers:
Luba_88 [7]3 years ago
8 0

Answer:

The answer is D I think :)))

Pavlova-9 [17]3 years ago
6 0
The correct answer would be “R=-4”. Since we know it’s being multiplied by 4 each time, we just have to test it out. 4 times -4=-16 times -4=64 times -4=-256. However if we do the rule for r=4, we would have 4 times 4=16. 16 is not equal to -16. Therefore the answer would be R=-4
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nordsb [41]

Answer:

39 (the first option listed among the possible answers)

Step-by-step explanation:

Recall that the mean is the same as the average of the numbers you have listed, that is the addition of all divided by the number of entries you use:

mean = \frac{29+42+45+39+36+41+38}{7} =\frac{270}{7} =38.57

Therefore, rounding to the nearest integer, our answer s: 39

5 0
3 years ago
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photoshop1234 [79]
<h3>Answer: D) The data repeats every 4 minutes</h3>

Explanation:

The period of a function measures how long a cycle takes. Think of tides on a beach. There's a regular pattern that can be predicted whether its high tide or low tide. Time is often the critical component with the period. Since choice D mentions time and the key term "repeat", this is why it's the answer.

The other values, while useful elsewhere, aren't going to tell us anything about the period. The initial value being 5 doesn't tell us when y = 5 shows up again, and if the function is repeating itself at this point or not. So info about choice A is not sufficient to determine the period. The same goes for choices B and C as well.

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3 years ago
Allison has three containers with 25 crayons in each. She also has four boxes of markers with 12 markers in each box. She gets 1
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Roman55 [17]

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Step-by-step explanation:

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