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Ugo [173]
3 years ago
15

An=128 •(1/2)^n-1 a5=? ^fifth term

Mathematics
1 answer:
vovangra [49]3 years ago
5 0

Answer:

8

Step-by-step explanation:

128•(½)^(5–1)

128•(½)⁴

128/16 = 8

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The explicit formula for the geometric sequence 10,30,90,180
alukav5142 [94]

Answer:

a_{n} = 10 (3)^{n-1}

Step-by-step explanation:

The n th term of a geometric sequence is

a_{n} = a (r)^{n-1}

where a is the first term and r the common ratio

Here a = 10 and r = 30 ÷ 10 = 3, thus

a_{n} = 10 (3)^{n-1}

7 0
3 years ago
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What is sin(A)?<br> 13<br> 12<br> A<br> 5<br> sin(A) =
eimsori [14]

Answer:

sin A = 12/13

Step-by-step explanation:

Since this is a right triangle, we can use trig functions

 sin theta = opposite side/ hypotenuse

sin A = 12/13

6 0
3 years ago
Find the rate of the changes the first two hours of use after unplugging her laptop ​
Alex17521 [72]

Answer:

Step-by-step explanation:

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3 0
3 years ago
How do I solve this equation -3.9÷1.3
yaroslaw [1]

- 3.9 / 1.3 = - 3/1 = - 3



Calculation Steps:


Conversion:


3.9 = 39/10



Unary Minus:


- 3.9 = - 39/10



Conversion:


1.3 = 13/10




Divide:


- 39/10 : 1.3


= - 39/10 * 10/13


= - 39 * 10/ 10 * 13



= - 390/130



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Answer: - 3





Hope that helps!!!! Answer: - 3



8 0
3 years ago
After taxes Brianna makes $9.25 per hour. She works for 6 hours a day and 4 days a per week. She puts 32% of her money in a savi
Margaret [11]

Answer:

She puts $71.04 into her savings each week

Amount Earned Each Day:

$9.25 x 6 hours = $55.5 per day

Amount Earned Each Week:

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Amount Put Into Savings Account:

$222 x 0.32 (or 32%) = $71.04 in her savings

Amount Kept After Savings:

$222 - $71.04 = $150.96

4 0
2 years ago
Read 2 more answers
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