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
Andreyy89
3 years ago
10

Indicate whether the observational study used is cross-sectional, retrospective or prospective: Researchers from the National In

stitute of Health want to determine the current rates of smoking among adult males and adult females. They conduct a survey of 500 adults of each gender.
Mathematics
1 answer:
sp2606 [1]3 years ago
4 0

Answer:

Cross-sectional

Step-by-step explanation:

Cross sectional study is a type of observational study that analyzes data from a population of a representative subset at a particular point in time.

You might be interested in
If ZPQR measures 75 what is the measure of ZSQR?
slava [35]

Answer:

Since there's no given exact measurement. I'll assume that the angle is by default 180 degrees.

If angle PQR measure 75 degrees.

then the measurement of angle SQR will be:

Angle PQR = 75

Angle SQR = 180 - 75 degrees

Angle SQR = 105 degree

Step-by-step explanation:

6 0
3 years ago
A problem in a test given to small children asks them to match each of three pictures
Lelechka [254]

Answer:

3

Step-by-step explanation:

because there are only three pictures

5 0
2 years ago
Let f(x)=x+1 and g(x)= x^2 – 2. Find f (x)· g(x)
morpeh [17]

As you see the answer :) its in the pic

4 0
3 years ago
Consider the equation below (in screenshot)
frozen [14]

The <em>approximate</em> solution of the equation shown in the picture is x ≈ 39 / 8 (Right choice: B).

<h3>How to find an approximate solution of a one-variable equation</h3>

The solution of the equation is between x = 4 and x = 5. Now we begin by evaluating each side of the expression (f(x) = x² - 5 · x + 4, g(x) = 2 / (x - 1)) at the average of x = 4 and x = 5.

x = (4 + 5) / 2

x = 4.5

f(4.5) = 4.5² - 5 · 4.5 + 1

f(4.5) = - 5 / 4

g(4.5) = 2 / (4.5 - 1)

g(4.5) = 4 / 7

The solution of the equation is between x = 4.5 and x = 5, then we evaluate at the average:

x = (4.5 + 5) / 2

x = 4.75

f(4.75) = 4.75² - 5 · 4.75 + 1

f(4.75) = - 3 / 16

g(4.75) = 2 / (4.75 - 1)

g(4.75) = 8 / 15

The solution of the equation is between x = 4.75 and x = 5, then we evaluate at the average:

x = (4.75 + 5) / 2

x = 4.875

f(4.875) = 4.875² - 5 · 4.875 + 1

f(4.875) = 25 / 64

g(4.875) = 2 / (4.875 - 1)

g(4.875) = 16 / 31

The <em>approximate</em> solution of the equation shown in the picture is x ≈ 39 / 8 (Right choice: B).

To learn more on successive approximations: brainly.com/question/27191494

#SPJ1

7 0
2 years ago
Talib is trying to find the inverse of the function to the right. His work appears beneath it. Is his work correct? Explain your
aev [14]
The answer is is 3 hope it helps
6 0
3 years ago
Other questions:
  • The slope of the line below is -3 use the coordinates of the labeled point to find a point slope equation
    5·1 answer
  • Find the zeros of each function. State the multiplicity of any multiple zeros. (Please show work)
    13·1 answer
  • Which property was used to write the equation in step 2?
    11·2 answers
  • ______is the longest dimension of an object
    6·1 answer
  • Tom, Kristen, Kaley, and Bill bought 333 granola bars to share among themselves. They divided each granola bar into 444 equal po
    7·1 answer
  • What is the LCD (Least Common Denominator) of 4 1/6 5 4/7?
    7·1 answer
  • Side XY of triangle XYZ is extended to point W, creating a linear pair with ∠WYZ and ∠XYZ.
    7·1 answer
  • On a scale drawing of 1/2 inch = 3 miles on the drawing how many miles are represented by a line that is 4 1/2 inches long
    14·2 answers
  • Mr. Lim is building a deck. He cuts a 9 foot piece of wood into
    10·1 answer
  • HELP
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!