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natali 33 [55]
4 years ago
9

Which choice is the explicit formula for the following geometric sequence?0.5, -0.1, 0.02, -0.004, 0.0008, ...

Mathematics
1 answer:
Minchanka [31]4 years ago
6 0
a_1=0.5\\a_2=-0.1\\a_3=0.02\\a_4=-0.004\\a_5=0.0008\\\\a_n=a_1\cdot q^{n-1}\\\\q=a_2:a_1\to q=-0.1:0.5=-0.2\\\\a_n=0.5\cdot(-0.2)^{n-1}=0.5\cdot(-0,2)^n\cdot(-0.2)^{-1}\\\\=0.5\cdot(-0.2)^n\cdot(-5)=-2.5\cdot(-0.2)^n\\\\\boxed{a_n=-2.5\cdot(-0.2)^n}
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Naming each number in word with the use of place value to name whole numbers: we have;

<em>4. Five hundred and twenty-five thousand, Six hundred minutes.</em>

<em>4. Five hundred and twenty-five thousand, Six hundred minutes.5. Two-million, six-hundresd and seventeen thousand, one-hundred and seventy six.</em>

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Using place value to name whole numbers involves orderly naming the numbers from right to left from unit, tens, hundreds, thousands, ten thousands and so on.

Ultimately, the naming of the numbers is as done above.

Read more:

brainly.com/question/18829057

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3 years ago
Say that you own property with a market price of $74,000. The state tax assessors have given it an assessed value of 48% of that
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Answer:

A

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3 years ago
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Anastasy [175]

Answer:

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So we can use an equation to find the totla cost C given the number of hours t as follows:

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We can use this equation to find the cost of a skiing session by plugging in some value for t. For example, if we ski for 3 hours:

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The equation can also be written using x and y and mean the same thing.

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3 years ago
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Answer:

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3 years ago
Read 2 more answers
2. The student council is sponsoring a concert as
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Answer:

80 adults must addent to make a complete $1,000

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You start with the students, $3 for each and 200 of them attend. 3x200=600 dollars in total. Then you would subtract 600 from 1,000. Next you will do the adults, 5x80=400 (The "leftover" cash) $5 for each times 80 adults will be $400 in total.

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3 years ago
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