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Nitella [24]
3 years ago
9

Write the explicit formula for the geometric sequence. 64, 32, 16, 8, ...

Mathematics
1 answer:
Setler [38]3 years ago
7 0

Answer:

aₙ = 1/2 x aₙ₋₁     n≥2

Step-by-step explanation:

aₙ = 1/2 x aₙ₋₁     n≥2  

a₁ = 64

a₂ = 1/2 x 64 = 32

a₃ = 1/2 x 32 = 16

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Please help!! thanks!!
Vitek1552 [10]

Answer:

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<em><u>1.</u></em><em><u>(</u></em><em><u>C</u></em><em><u>)</u></em>

<em><u>2.</u></em><em><u>(</u></em><em><u>D</u></em><em><u>)</u></em>

<em><u>3.</u></em><em><u>(</u></em><em><u>B</u></em><em><u>)</u></em>

<em><u>4.</u></em><em><u>(</u></em><em><u>A</u></em><em><u>)</u></em>

<em><u>6</u></em><em><u>.</u></em><em><u>(</u></em><em><u>D</u></em><em><u>)</u></em>

Explanation:

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6 0
3 years ago
Charisse collects antique salt and pepper shakers. The value of her cactus salt and pepper shakers is shown (56.28$). The value
MAVERICK [17]

Answer:

  $53.61

Step-by-step explanation:

It looks like the rate of change is supposed to be -2 2/5% = -2.4% per year. That means the "growth factor" is ...

  growth factor = 1 + growth rate

  growth factor = 1 -2.4% = 1 -0.024 = 0.976

Each year, Charisse's cactus salt and pepper shakers will have their value multiplied by this factor. After 2 years, their value will be ...

  ($56.28)(0.976)(0.976) = $56.28×0.976^2 ≈ $53.61

The value is projected to be $53.61 in 2 years.

6 0
3 years ago
How to turn 1/4÷9/10 into a mixed fractions
sashaice [31]

First, change the division sign to multiplication, and flip the second fraction

(1/4)/(9/10) = 1/4 x 10/9

1/4 x 10/9 = 10/36

10/36 is your answer, and there is not enough in the numerator to change into an mixed fraction.

hope this helps

7 0
4 years ago
Solve the proportion 2/5=x/3
Slav-nsk [51]

Answer:

1.2

Step-by-step explanation:

1.2/3 is 40 percent

2/5 is 40 percent

used guess and check took me 1 minute

8 0
3 years ago
A patient has been ordered 750 mg/day of medication that is available in tablets of 75mg each. The nurse will administer a dosag
soldi70 [24.7K]

Answer:

The last dose will be administered at 6 P.M.

Step-by-step explanation:

This problem can be solved by direct rule of three.

The problem states that each tablet has 75mg of medication, and that every 3 hours, 2 tablets are administered.

So

1 tablet - 75mg of medication

2 tabets - xmg of medication

x = 150mg

It means that in each dose, 150mg of medication are administed.

At 6am, as the first dose is administered, the patient will have taken 150mg of medication. In how many doses will the patient have been administed 750mg?

1 dose - 150mg

x doses - 750mg

150x = 750

x = 5 doses.

The doses are administed in intervals of 3 hours. After the first dose, there will be 4 doses remaining. So it will take 4*3 = 12 hours to administer 4 doses.

So, if the first dose is administed at 6am, the last is going to be administed at 6h+12h = 18h = 6P.M.

5 0
3 years ago
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