1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
lara31 [8.8K]
2 years ago
13

The function f(x) = 200(0.5)x/50 models the amount in pounds of a particular

Mathematics
1 answer:
victus00 [196]2 years ago
4 0

<u>Answer:</u>

29 years

<u>Step-by-step explanation:</u>

  • Given the function f(x)= 200(0.5)^{\frac{x}{50} }, where x stands for the number of years since the material was put into the vault, we can plug 140 into x to find the amount leftover.
  • Another way of doing this is to change the function to f(x)=200(0.5^{\frac{1}{50} })^{x} which are equivalent functions, and then plug 140 into x. This function is helpful if you also needed to find the rate.
  • I'll use the 1st function because the question doesn't ask for the rate

f(x)= 200(0.5)^\frac{140}{50}}

From here I'll just use a calculator & get 28.7, or 29 years.

You might be interested in
Cody and his friends started playing a game at 6:30 p.M. It took them it took them 47 minutes to finish the game at what time di
zaharov [31]

Answer:

7:17 PM

Step-by-step explanation:

Add another 30 minutes to 6:30 = 7:00 PM

    47-30 = 17

add the remaining 17 minutes to 7:00 = 7:17 PM

7 0
3 years ago
The national weather service keeps records of rainfall in valleys. Records indicate that in a certain valley the annual rainfall
Setler79 [48]

Answer:

The mean is 95 and the standard deviation is 2

Step-by-step explanation:

Central Limit Theorem

The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean \mu and standard deviation \sigma, the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean \mu and standard deviation s = \frac{\sigma}{\sqrt{n}}.

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

In this question:

Population:

Mean 95, Standard deviation 12

Samples of size 36:

By the Central Limit Theorem,

Mean 95

Standard deviation s = \frac{12}{\sqrt{36}} = 2

4 0
2 years ago
Prince waste collection pays a yearly dividend of $14.94 per share of stock. if prince waste collection pays kathy $46,926.54 in
Lena [83]

This can be solve by just dividing the total money that prince paid to kathy by the yearly dividend per share of stock. Since prince waste collection pays kathy $46,926.54 in dividends every year and divide it by $14.94. so kathy owns 3141 share of stocks

7 0
3 years ago
Read 2 more answers
Which statement about liters and milliliters is true?
gogolik [260]

Answer:

There are 1,000 mL in a L

Step-by-step explanation:

All the other answers are wrong

4 0
3 years ago
No links or anything
Alex17521 [72]

Answer:

A

Step-by-step explanation: tbh he numbers mess with me. like give me the name of the line and i can figure that out easier but i got to go with A

6 0
3 years ago
Other questions:
  • In the U.S., 95% of children have received their DTaP vaccine. Calculate the probability that fewer than 700 out of a sample of
    7·1 answer
  • What are the x-intercepts of the graphs of the function shown below y=x^2+4x-32?
    9·1 answer
  • the sum of the interior angles of the polygon is 20 right angles. how many sides does the polygon have?
    5·1 answer
  • You are in charge of the Annual Powder Puff football game. You designed a t-shirt to sell during the event. A company charges $7
    14·1 answer
  • If PQR measures 75°, what is the measure of SQR?<br><br> 22°<br> 45°<br> 53°<br> 97°
    6·2 answers
  • What is the area? Please I need help ​
    8·2 answers
  • Write the numerical answer only. Do not include labels, dollar signs, or units.
    11·1 answer
  • More to come 10 questions
    9·2 answers
  • 6 less than the product of x and y
    15·1 answer
  • B is the midpoint of AC. If AB = 11x +2 and CB=9x +10, find x.
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!