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zvonat [6]
3 years ago
6

Please help me. I bad brain

Mathematics
2 answers:
icang [17]3 years ago
5 0

Answer:

The third X is 6. The fourth Y is 4.5

Step-by-step explanation:

The Rule : X is twice as large as Y. Y is half the size of X.

You can get this piece of information by looking at the different values.

For example, y=1 is x=2. This follows the rule. x=4 is y=2.

We have confirmed the rule is true, now we just need to carry the information into the other blocks!

Best of luck on the quiz! Please give brainliest if I helped you out!

beks73 [17]3 years ago
5 0

Answer: the first row is 6 and the bottom row is 4.5

Step-by-step explanation:

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Answer:

2/12

Step-by-step explanation:

7/12 -5/12 = 2/12

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7 0
3 years ago
A radioactive substance decreases in the amount of grams by one-third each year. If the starting amount of the
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Answer:

The sequence is geometric. The recursive formula is a_{n}=2/3a_{n-1}

Step-by-step explanation:

In order to solve this problem, you have to calculate the amount of the substance left after the end of each year to obtain a sequence and then you have to determine if the sequence is arithmetic or geometric.

The substance decreases by one-third each year, therefore:

After 1 year:

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Using 1452 as a common factor and solving the fraction:

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You can notice that in general, after each year the amount of grams is the initial amount of the year multiplied by 2/3

After 2 years:

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After 3 years:

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The sequence is:

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In order to determine if the sequence is geometric, you have to calculate the ratio of two consecutive terms and see if the ratio is the same for all two consecutive terms. The ratio is obtained by dividing a term by the previous term.

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For the second and third terms:

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7 0
3 years ago
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4 0
3 years ago
Read 2 more answers
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dem82 [27]

Answer:

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5 0
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