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algol [13]
3 years ago
12

How can you round 7x396

Mathematics
1 answer:
tia_tia [17]3 years ago
3 0
7 x 396 = 2772
Rounded to the nearest ten; 2770
Rounded to the nearest hundred: 2800
Rounded to the nearest thousand: 3000
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Answer: D) f(n)=8(1.5)^{n-1}


Step-by-step explanation:

From the given table we can see that this is not representing a linear function as the rate of change is not constant.

So it can be exponential growth function A(b)^{n-1},  where A is the initial amount , b is the multiplicative rate of growth and n is the time period in weeks.

Now here at n=1 , f(n)=8

Therefore, A=8

Now, for n=2

f(2)=8(b)^{2-1}\\\Rightarrow12=8b\\\Rightarrow\ b=\frac{12}{8}\\\Rightarrow\ b=1.5

By substitute the values of A and b in the above equation, we get the equation f(n)=8(1.5)^{n-1}

Therefore, the function best shows the relationship between n and f(n) is

f(n)=8(1.5)^{n-1}, where n is the number of weeks.

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Am I correct? Please correct me if I'm wrong
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Great job

Step-by-step explanation:

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