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
ra1l [238]
2 years ago
12

A study was created to test the effects of jazz on people’s sleep patterns. The hypothesis of the experiment, 2 groups of people

were created.Group I was placed in a quiet room where they went to sleep and they were timed on how long they slept. The group 2 was placed in a room where jazz music played softly as they began to sleep and played throughout the night. As each group awoke,their sleep times were monitored. What is the independent Variable ? And what is the Dependent Variable?
Mathematics
1 answer:
likoan [24]2 years ago
8 0

Answer:

independent variable- Presence or absence of soft jazz music

Dependent variable - sleep time

Step-by-step explanation:

The independent variable refers to that variable that is manipulated in an experiment. The independent variable is being studied and its effect on the dependent variable is documented. Presence or absence of soft jazz music is the independent variable.

The dependent variable is the response variable. It is that factor that changes when the independent variable is manipulated. In this case, the sleep time of the participants in the study is the dependent variable.

You might be interested in
Which expression is equivalent to ?
mamaluj [8]

Answer:

Step-by-step explanation:

\frac{(a^{2}b^{4}c)^{2}*(6a^{3}b)*(2c^{5})^{3}}{4a^{6}b^{12}c{^3}}\\\\=\frac{a^{2*2}b^{4*2}c^{2}6a^{3}b2^{3}c^{5*3}}{4a^{6}b^{12}c{^3}}\\\\=\frac{a^{4}b^{8}c^{2}6a^{3}b8c^{15}}{4a^{6}b^{12}c{^3}}\\\\=\frac{6*8*a^{4+3}b^{8+1}c^{2+15}}{4a^{6}b^{12}c{^3}}\\\\=\frac{6*2*a^{7}b^{9}c^{17}}{a^{6}b^{12}c{^3}}\\\\=\frac{12a^{7-6}c{17-3}}{b^{12-9}}\\\\=\frac{12a^{1}c^{14}}{b^{3}}\\\\=\frac{12ac^{14}}{b^{3}}

Hint:

x^{m}*x^{n}=x^{m+n}\\\frac{x^{m}}{x^{n}}=x^{m-n},m>n\\\frac{x^{m}}{x^{n}}=\frac{1}{x^{n-m}},n>m

5 0
3 years ago
Eric rented a truck for one day the base fee was 16.95 for additional charge of .76 cents for each mile driven eric had to pay 1
goldenfox [79]

Answer:

178 miles

Step-by-step explanation:

Let Eric has driven d miles.

As the rate of charge of driving the truck = 76 cents /mile

So, the charge of driving the truck for d miles = 76d cents= $0.76d

The base fee of the truck was $16.95.

Total money paid at the time of returning the truck = $152.23

So, 16.95+0.76d=152.23

0.76d= 152.23-16.95=135.28

d=135.28/0.76

d=178

Hence, he drives 178 miles.

8 0
3 years ago
Paula has buttons. she gives away 28 buttons. choose the expression that shows the number of buttons paula has left.
mamaluj [8]

Answer:

y = 28 - x

Step-by-step explanation:

The variable x represents how many buttons Paula had before giving 28 away and the variable y represents how many buttons she has now.

3 0
2 years ago
a player gets to throw 4 darts at the target shown. Assuming the player will always hit the target, the probability of hitting a
padilas [110]

Answer:

3.375

Step-by-step explanation:

(3/5)^3 / (2/5)^3 = 3.375

3 0
3 years ago
Read 2 more answers
2m^2n^4/6m^5n^3 assume no variable equals zero.
Andrews [41]
<span>2m^2n^4/6m^5n^3
           n
 =   --------
         3m^3</span>
8 0
3 years ago
Other questions:
  • How do I solve this
    9·1 answer
  • Which number line correctly shows 1.1, 8/5 , and 1 2/5 ?
    6·2 answers
  • What are the angles of a triangle with the sides 10, 8, 7
    13·2 answers
  • What is the square footage for this property described by the metes-and-bounds method? Beginning at the point of the southerly s
    14·1 answer
  • What is the solution set of –|–x| = –12? no solution {–12} {12} {–12, 12}
    9·1 answer
  • Simplify. 3 – [–(–1)] <br> A. 4 <br> B. –2 <br> C. 2 <br> D. –4
    5·1 answer
  • What’s the slope I need help!
    5·2 answers
  • Triangle town wants to build a school that is equidistant from its three cities L, M, and N. Which construction correctly finds
    14·1 answer
  • Each deck has 52 cards in it. Using m, write an expression for the total number of cards.
    12·1 answer
  • Write an equation parallel to y=2x+4 that passes through the point (-2,4)
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!