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WARRIOR [948]
2 years ago
15

A researcher is examining the claims made by a water softener salt manufacturer. He performs an experiment using water from a va

riety of sources. For each water source, he has a sample with no treatment and a sample treated with the recommended amount of the water softener salt.
He then tests each sample to measure the softness and compares the results, determining that the claims made by the manufacturer are true.

The conclusion drawn from the study is ___ because the sample is __ In this instance, an __ study was performed.
Mathematics
1 answer:
mylen [45]2 years ago
6 0

The conclusion drawn from the study is instance because the sample is homogenous and an experimental study was performed.

<h3>What is an experimental study?</h3>

An experimental study deals with a dependent variable and there is a dependent variable.

Also, a control is used to establish the validity of the results.

The dependent variable is the level of softness after treatment while the independent variable is the type of water softener used.

The conclusion drawn from the study is instance because the sample is homogenous and an experimental study was performed.

Learn more about the experiment:

brainly.com/question/9199868

#SPJ1

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In December 1990, the largest pizza ever baked was made in South Africa. The diameter of the pizza was 37.4 meters. What was the
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Answer:

1098.0266 square meters.

Step-by-step explanation:

Area of a circle is pi times radius squared. We know the diameter, witch is twice the radius. Usually we use 3.14 as pi, but it can also be 22/7. If you have to show your work, try looking for if it asks for pi in the decimal or fraction form. Can I get brainliest?

8 0
3 years ago
PLS HELP ME, I REALLY NEED THIS RIGHT NOW, 100 POINTS, IF YOU ANSWER WITH NO EXPLANATION, OR ANSWER FOR THE POINTS YOU WILL BE R
Reika [66]

9514 1404 393

Answer:

  • 0 ≤ m ≤ 7
  • 0.4541 cm/month; average rate of growth over last 4 months of study

Step-by-step explanation:

<u>Part A</u>:

The study was concluded after 7 months. The fish cannot be expected to maintain exponential growth for any significant period beyond the observation period. A reasonable domain is ...

  0 ≤ m ≤ 7

__

<u>Part B</u>:

The y-intercept is the value when m=0. It is the length of the fish at the start of the study.

__

<u>Part C</u>:

The average rate of change on the interval [3, 7] is given by ...

  (f(7) -f(3))/(7 -3) = (4(1.08^7) -4(1.08^3))/4 = 1.08^3·(1.08^4 -1)

   ≈ 0.4541 cm/month

This is the average growth rate of the fish in cm per month over the period from 3 months to 7 months.

3 0
2 years ago
The ratio of green food coloring to blue food coloring is 1:2. we used 6 drops of blue. how many total drops of food coloring di
ehidna [41]
If the ratio of green to blue food coloring is 1:2 and 6 drops of blue was used, meaning that you basically multiplied 2 by 3 in order to get 6. Then the number of green drops would be 3 (1*3=3). 6+3=9
The total amount of drops of food coloring is then 9.

Hope this helps! (:
7 0
3 years ago
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drek231 [11]
Statement 1 is false due to the phrase <span> it has 12 as a factor. A factor of a number cannot be larger than the number. It should be less than and gives a whole number.

Statement 2 is true because when you divide 12 with 2 and 6, a whole number is obtained suggesting that it is a factor of the number.</span>
8 0
3 years ago
Let the random variable x denote the natural numbers selected at random from one to one hundred. find the mean of x.
Serga [27]
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3 0
3 years ago
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