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Ann [662]
3 years ago
8

What is the unknown term in sequence ? 28.6 , 26.1, 23.6 ,__,18.6

Mathematics
2 answers:
4vir4ik [10]3 years ago
7 0

<u>21.1</u>

Each number is 2.5 less than the previous one.

arsen [322]3 years ago
7 0
The answer is 21.1 each one decreases by 2.5
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−3n+2≥−4n−3 solution
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n≥-5

Step-by-step explanation:

-3n+2≥-4n-3

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Step-by-step explanation:

6 0
3 years ago
: A new bear population that begins with 150 bears in 2000 decreases at a rate of 20% per year.
d1i1m1o1n [39]

Answer:

2 bears in 2020.

Step-by-step explanation:

We have been given that a new bear population that begins with 150 bears in 2000 decreases at a rate of 20% per year.

We will use exponential decay formula to solve our given problem as:

y=a\cdot (1-r)^x, where,

y = Final quantity,

a = Initial value,

r = Decay rate in decimal form,

x = Time

20\%=\frac{20}{100}=0.20    

Upon substituting our given values in above formula, we will get:

y=150(1-0.20)^x

y=150(0.80)^x, where x corresponds to year 2000.

To find the population in 2020, we will substitute x=20 in our equation as:

y=150(0.80)^{20}

y=150(0.011529215046)

y=1.7293822569    

y\approx 2

Therefore, 2 bears are there predicted to be in 2020.

Since population is decreasing so population is best described as exponential decay.

8 0
3 years ago
Can I please get help with this one ?
swat32
|528 1/5 - (-89 3/5)|
|528 1/5 + 89 3/5|
|617 4/5|
617 4/5

Hope this helped!
8 0
3 years ago
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