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Novay_Z [31]
2 years ago
15

Determine whether each set of data can be modeled by an exponential function. If so, find the exponential

Mathematics
1 answer:
Sergeeva-Olga [200]2 years ago
3 0

It can be modeled by an exponential function, f(x) is divided by 3 each time x increases by 1.

This means that the base of the exponential function is 1/3, and since the value of f(x) when x=0 is 81, f(x)=81\left(\frac{1}{3} \right)^{x}

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A recipe for potato salad calls for 30 potatoes to make 12 quarts of potato salad. How many potatoes are required to make 4 quar
liberstina [14]

Answer:

10 potatoes.

Step-by-step explanation:

Let x be the number of  potatoes.

Then by proportion:

30/12 = x/4

12x = 4*30 = 120

x = 10.

5 0
3 years ago
If you can mow 1000 square feet per minute, how long to mow a circle with diameter of 800 feet?
maria [59]

Answer:

You can calculate the area of the circle

We know the formula is: \pi*r^2

And if diammeter is 800, then the radio is a half: 400

We replace:

\pi*r^2 --> \pi * 400^2 \approx 502654.8  feet

So now we can divide:

502654/1000 = 502,654 minutes

3 0
3 years ago
Question 12 1 pts If the population of a country is reported in the year 1990 as 471.56 million and in the year 2000 as 492.53 m
I am Lyosha [343]

Answer:

  526.39 million

Step-by-step explanation:

The exponential equation can be written as ...

  p(t) = 471.56(492.53/471.56)^(t/10)

Then p(25) ≈ 525.75 . . . . million

__

The closest answer choice is 526.39 million.

__

<em>Comment on the answer choice</em>

Reverse-engineering the answer, we find it was computed using the exponential equation ...

  p(t) = 471.56e^(0.0044t)

  p(25) = 471.56·1.116278 ≈ 526.39

The k factor in the exponent is <em>inappropriately rounded</em> from 0.004350903. You cannot use a 2-significant-figure constant to arrive at an accurate 5-significant-figure answer.

3 0
3 years ago
How many inches tall is a 7 foot basket ball player
andrey2020 [161]
7 inches obviously thanks for the points
6 0
3 years ago
Read 2 more answers
ILL GIVE BRAINIEST TO WHOEVER IS CORRECT!! PLEASE HELP ASAP!!
kogti [31]

Answer:

Step-by-step explanation:

3 0
3 years ago
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