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Phoenix [80]
3 years ago
14

Which Expression has a value of 39?

Mathematics
1 answer:
vampirchik [111]3 years ago
8 0
D has a value of 39.
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2 years ago
Given the geometric sequence where a1=3 and the common ratio is -1, what is the domain for n?
erik [133]

Answer:

  natural numbers

Step-by-step explanation:

As it is for any sequence, the domain of term numbers (n) is the positive integers, the natural numbers.

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When the common ratio is positive, the expression for the n-th term can be evaluated for non-integer values of n. In the context of "term number n", that makes no sense, but you can do it.

When the common ratio is negative, you can also evaluate the expression for the n-th term for non-integer values of n. In such cases, you get a complex number result. That, too, makes no sense in the context of a sequence, but you can do it.

In general, the domain of any "n' that represents something being counted, the domain of n will be the counting numbers.

7 0
4 years ago
Jack has a cat that is 4 times as large as jill's cat. combined, both cats weigh 35 pounds. how much does jacks cat weigh ?
Sever21 [200]
If we say that the weight of Jill's cat is w, then we can say that the weight of Jack's cat is 4w.

We know that the combined weight is 35 pounds, so we can write this as

4w+w=35

Which simplifies to

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If we divide by 5, we are left with

w=7

So that gives us the weight of Jill's cat. If Jack's cat weighs 4 times as much, we can see that

4x7=28

Therefore, Jack's cat weighs 28 pounds :)
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4 years ago
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Step-by-step explanation:

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