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
balu736 [363]
2 years ago
11

PLEASE HELP ME!!!!!!!

Mathematics
1 answer:
Airida [17]2 years ago
5 0
<h3>Answer:</h3>

D. This is an experiment because it is applying a treatment

<h3>Step-by-step explanation:</h3>

Experiments and observational studies are both ways to find new information about a hypothesis but in different ways.

Vocabulary

First, to understand the question, let's define the key terms.

  • Experiment - An experiment is when a scientist purposely applies a treatment and interferes with a person's life in order to gather information.
  • Observational Study - This type of study attempts to study a person without interfering with their lives in any way.

These definitions eliminate the answer choices A and C because both of them match the incorrect definition of the term.

Experiment vs. Observational Study

Now, we need to figure out if this specific example is an experiment or an observational study. In this case, the nutritionist is giving a treatment of vitamins. This means that this cannot be an observational study because the scientist is interfering with people. It has to be an experiment because there is a specific treatment being applied.

You might be interested in
The quadratic function f(x) = -x2 - 6x - 8 is graphed.
Alona [7]

Answer:

-2 and -4

Step-by-step explanation:

When the quadratic equation equals 0, that means when y = 0.

By looking at the graph, whenever y = 0 is when the graph crosses the x-axis.

The graph crosses the x-axis at only two points:

(-4, 0) and (-2, 0)

So the solutions to the graph when  -x^2 - 6x - 8 equals 0 is -2 & -4.

Hope it helps (●'◡'●)

7 0
3 years ago
Read 2 more answers
15 students were asked how many hours per week they listen to music. 3 different graphs were used to record the same data.
AlladinOne [14]
If you observe the 4 graphical representations you will see that except stem and leaf plot, the rest 3 represent the same information. 

As the time is increasing, the frequency of students who listen to music is decreasing. The frequency is maximum for the first group 0 - 1 and least for the last group 6 - 7.

The ranges shown in both Frequency Table and Histogram are the same. 

So, the following options are correct:
<span>B) One of the displays does not show the same information as the others.
C) The first three displays show that as time increases, frequency decreases.</span>
5 0
3 years ago
Angles 1 and 2 are supplementary. 2 lines intersect to form angles 1 and 2. Which equation represents the relationship between t
LenKa [72]

Answer:

Step-by-step explanation: A

8 0
3 years ago
Read 2 more answers
Find the slope of the line that passes through (2, 5) and (6,4).
ElenaW [278]

Answer:

The slope of the line is \frac{1}{-4}.

Step-by-step explanation:

We use the formula change in y over change in x to find the slope:

\frac{5-4}{2-6}

Then we simplify:

\frac{1}{-4}

The slope of the line is \frac{1}{-4}.

7 0
3 years ago
Can someone please help me? Every answer I put is wrong lol.
hichkok12 [17]

Answer:

130

Step-by-step explanation:

it says the s is 5 so do 65 + 65 and 130 wouldbe your answer

6 0
3 years ago
Other questions:
  • NEED HELP WITH ALL THESE PROBLEMS !!
    10·1 answer
  • A professional soccer player buys 16 acers of land. he plans to build a house on the land but wants to use 2/8 of the land to pu
    11·1 answer
  • Charlie speed of 3 yd/s about how manymiles per hour does charlie run all
    12·1 answer
  • Tracy deposited $59 into a bank account that earned 3.5% simple interest each year.
    9·2 answers
  • PRE CALC QUESTION
    15·1 answer
  • Please help me with this problem​
    6·1 answer
  • Which algebraic property could be used to rewrite 4x + 2y as 2y + 4x?
    12·2 answers
  • after hitting the black friday sales, sarah bought her dress on sale for $35. She saved 45%, what was the original cost.
    6·1 answer
  • Which two ratios represent quantities that are proportional?
    5·1 answer
  • Right answer will get brainlist
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!