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
Anuta_ua [19.1K]
3 years ago
15

A researcher uses an anonymous survey to investigate the television-viewing habits of American adolescents. Based on the set of

356 surveys that were completed and returned, the researcher finds that these students spend an average of 3.1 hours each day watching television. For this study, the set of 356 students who returned the surveys is an example of a _______.
Mathematics
1 answer:
kow [346]3 years ago
8 0

Answer:

The answer is - sample.

Step-by-step explanation:

Based on the set of 356 surveys that were completed and returned, the researcher finds that these students spend an average of 3.1 hours each day watching television.

For this study, the set of 356 students who returned the surveys is an example of a SAMPLE.

A sample is defined as a small part that shows what the whole population is like.

You might be interested in
Find the sum using the formulas for the sums of powers of integers ( problem attached )
Natasha2012 [34]

Correct Answer: - 550

We can use the distributive property to distribute the summation to the variables and then get the constant out to apply the summation formulas as shown below in the attached image.

The equation editor does not have a summation symbol, so I have attached the solution using the image.

The correct answer to this question is -550. First option is the correct one.

7 0
3 years ago
What substitution should be used to rewrite 16(x3 + 1)2 – 22(x3 + 1) – 3 = 0 as a quadratic equation?
Vesna [10]

Answer:

  z = x^3 +1

Step-by-step explanation:

Noting the squared term, it makes sense to substitute for that term:

  z = x^3 +1

gives ...

  16z^2 -22z -3 = 0 . . . . the quadratic you want

_____

<em>Solutions derived from that substitution</em>

Factoring gives ...

  16z^2 -24z +2z -3 = 0

  8z(2z -3) +1(2z -3) = 0

  (8z +1)(2z -3) = 0

  z = -1/8  or  3/2

Then we can find x:

  x^3 +1 = -1/8

  x^3 = -9/8 . . . . . subtract 1

  x = (-1/2)∛9 . . . . . one of the real solutions

__

  x^3 +1 = 3/2

  x^3 = 1/2 = 4/8 . . . . . . subtract 1

  x = (1/2)∛4 . . . . . . the other real solution

The complex solutions will be the two complex cube roots of -9/8 and the two complex cube roots of 1/2.

7 0
3 years ago
Read 2 more answers
What if the carrots were 50 cents less per pound how much Victoria pay for 8.5 pounds of carrots?
nikdorinn [45]
If you multiply 8.5 by 50 cents your answer will be 4.25
5 0
3 years ago
How do u find the mean median mode and range?
seropon [69]
Mean is the average. So you add up all the numbers and divide by how many numbers there were.

Mode is the number that occurred the most.

Median is the number that is in the middle when you list the numbers from least to greatest or greatest to least.

Range is calculated when you subtract the biggest number in the group by the smallest number.
6 0
3 years ago
Read 2 more answers
50 point! Look at the picture attached. I will mark brainliest!
worty [1.4K]

Answer:

22°

Step-by-step explanation:

Triangle KJL ≅ Triangle MJL (RHS)

[JL = JL(common), KL = LM(given), angle KLJ = angle MLJ(given)]

we come up to the conclusion that 4x + 6 = 3x + 10

x = 4

∴angle KJL = 4(4) + 6 = 22°

6 0
3 years ago
Read 2 more answers
Other questions:
  • A tissue box shaped like a rectangular prism. The box is 2.3 feet wide, 4 feet long and 6 feet tall. what is the volume of the t
    8·1 answer
  • Evaluate the expression for<br> a = 14, b = 29, c = 1, d = 1:<br> a + b - C-d
    15·2 answers
  • Find an equation for the perpendicular bisector of the line segment whose endpoints
    7·1 answer
  • Someone please help me with this!! i really need this to pass :(
    12·1 answer
  • 1. A company produces two types of nutritional supplements; Energize and Excel. Energize contains 26 mg of vitamin A, 42 mg of v
    7·1 answer
  • Please help me with this properties of circles maze. If you can’t see the lower left box is 56 degrees.
    7·1 answer
  • Find the quadratic function that fits curve below. Select the correct answer.
    11·1 answer
  • How do you solve a degree of a polynomial?
    8·1 answer
  • How many solutions are on this graph?
    9·2 answers
  • Find the value of x
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!