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
sertanlavr [38]
3 years ago
12

Determine whether the following study is an observational study or an experiment. If the study is an experiment, identify the co

ntrol and treatment groups, and discuss whether single- or double-blinding is necessary. If the study is observational, state whether it is a case-control study, and if so, identify the cases and controls.
In a study of the effects of magnets on back pain, some participants were treated with magnets while others were given nonmagnetic objects with a similar appearance. The magnets did not appear to be effective in treating back pain. Choose the correct answer below.
A. Experiment, the treatment group is patients that used the magnets and the control group is patients that received the placebo; double blind
B. Observational study; case control; the cases are the patients that received magnets, the controls are the patients that received placebos
C. Observational study; not case-control
D. Experiment, the treatment group is all patients and the control group is patients that received the magnets; single blind
Mathematics
1 answer:
horrorfan [7]3 years ago
6 0

Answer:

A. whether a woman took hormones.

B. whether to woman in the study had a heart attack.

D. access to health care

Step-by-step explanation:

The study conducted to observe the menopausal woman must be supported with their health history. Some woman may have menopause at an early age while other go towards this at a later age. This can be due to smoking, hormone intake, severe diseases like heart attack or cancer and their routine health checkup details. There variables must be observed and included in experiment to reach a conclusion.

You might be interested in
0.86421 . . . is an irrational number. true false
Ad libitum [116K]
Numbers that cannot be expressed as an exact ratio are called irrational numbers so that would make it true
7 0
3 years ago
Read 2 more answers
Which equation represents a line that passes through (5, 1) and has a slope of ?
lys-0071 [83]

Answer:

y - 1 = 5(x - 5)

Step-by-step explanation:

Given the following data;

Points (x, y) = (5, 1)

Slope = ?

From the question, the value of the slope is missing. Hence, let's assume a value of 5.

Mathematically, the equation of a straight line is given by the formula;

y = mx + c

Where;

m is the slope.

x and y are the points

c is the intercept.

To find the equation of line, we would use the following formula;

y - y1 = m(x - x1)

Substituting into the formula, we have;

y - 1 = 5(x - 5)

y - 1 = 5x - 25

y = 5x - 25 + 1

y = 5x - 24 = mx + c

5 0
3 years ago
The circumference of a circle is 19 pi meters. What is the radius in meters?
Sliva [168]

Answer:

<h3>Area of a circle in terms of radius:</h3>

Area = π·r^2 = 3.14·9.5^2 = 283.5 square meters(*)

Area of a circle in terms of diameter:

Area = π·(d/2)^2 = 3.14·(19/2)^2 = 3.14·(9.5)^2 = 283.5 square meters(*)

Area of a circle in terms of circumference:

Area = C^2/4π = 59.69^2/4π = 3562.9/(4·3.14) = 3562.9/12.56 = 283.5 square meters(*)

(*) 283.52873698648 meters, exactly or limited to the precision of this calculator (13 decimal places).

Note: for simplicity, the operations above were rounded to 2 decimal places and π was rounded to 3.14.

Step-by-step explanation:

Hope it is helpful....

8 0
3 years ago
Which equation shows an example of the associative property of addition?
Nat2105 [25]

The associative property states that we can regroup the terms of an expression and obtain the same result.

We have then:

a + (b + c) = (a + b) + c

The expression that complies with this property is given by:

(-4 + i) + 4i = -4 + (i + 4i)

Answer:

An equation that shows an example of the associative property of addition is:

a. (- 4 + i) + 4i = -4 + (i + 4i)

6 0
3 years ago
Read 2 more answers
PLEASE HELP PICTURE IS INCLUDED
Katarina [22]
C- Similar SAS (Side Angle Side)
7 0
4 years ago
Read 2 more answers
Other questions:
  • PLEASSEEEE HELP W THIS QUESTION!!!!
    14·2 answers
  • 3x - 4y = 6 6x - 8y = 10 The system shown has _____ solution(s). no. one. infinite.
    10·2 answers
  • Solve: V = 1/3Bh for h
    10·1 answer
  • Consider a game in which a fair die is rolled. If the die comes up 1, the player wins $2. If the die comes up 2, the player wins
    14·1 answer
  • which of the following is an equation of the line that passes through the point (-2, 3) and is perpendicular to the graph of the
    9·1 answer
  • carmen bought 15 case of juice for a party. she bought 3 cases of bottled water for every 5 case of juice she bought for the par
    15·1 answer
  • The single 42 year old woman with a monthly salary $3700 spends $1200 on rent
    7·1 answer
  • What’s the answer? Plz help
    13·1 answer
  • Someone tell me where everyone is going right please !!
    12·2 answers
  • Mohamad saved $63 during the month of June. Mohamad saved 7 times the amount of Money Laila saved. How much money did Laila save
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!