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
jekas [21]
3 years ago
15

A researcher conducts an experiment comparing two treatment conditions with 20 scores in each treatment condition.

Mathematics
1 answer:
Savatey [412]3 years ago
6 0
To determine the number of subjects that are needed for the experiments, we multiply the number of independent variables with the number of scores. For example, there are n independent variables then, there are approximately,

                                number of subjects = 20 x n = 20n
You might be interested in
It took emily 25 min to rideHer bicycle to the repair shop in one hour and 15 minutes to walk back home. If Emily her bicycle to
s2008m [1.1K]

Answer:the repair shop is 5km from her house.

Step-by-step explanation:

Let x represent the distance of the repair shop from her house.

Let y represent Emily's speed when riding.

Distance = speed × time

It took Emily 25 min to ride her bike to the repair shop. Converting 25 min to hours, it becomes 25/60 = 5/12 hours.

Distance covered,

x = y × 5/12 = 5y/12

It took her 1h 15 min to walk back home. Converting to hours, it becomes 1 + 15/60 = 1 1/4 = 5/4

If she can ride her bike 8km/h faster than she can walk, it means that her speed while walking would be y 8 8

Therefore,

Distance covered,

x= 5/4(y - 8) = (5y - 40)/4

Since the distance remains the same, then

5y/12 =(5y - 40)/4

Crossmultiplying, it becomes

5y × 4 = 12(5y - 40)

20y = 60y - 480

60y - 20y = 480

40y = 480

y = 480/40 = 12

x = 5y/12 = 5 × 12/12 = 5 km

6 0
3 years ago
The product of 2x^2+6x-8 and x+3 in standard form
anzhelika [568]

Answer:

2x³ + 12x² + 10x - 24

Step-by-step explanation:

(2x² + 6x - 8)(x + 3)                         Distribute

2x³ + 6x² + 6x² + 18x - 8x - 24      Combine like terms

2x³ + 12x² + 10x - 24                      This expression is in standard form

If this answer is correct, please make me Brainliest!

6 0
4 years ago
Answer Please---Due today!!!
Angelina_Jolie [31]

Answer:

14/44 or 7/22

because 44 is the total and the total number of latin cds are 14

so 14/44 simplified would be 7/22

hope it helped

Step-by-step explanation:

Please rate and mark as brainliest

Thank you and have a good day

5 0
2 years ago
Read 2 more answers
Which statement is correct?
sladkih [1.3K]

Answer:

c

Step-by-step explanation:

A line that rises from left to right has a positive slope.

4 0
4 years ago
Read 2 more answers
HELLPP MEE ! I NEED HELP FAST
Kipish [7]
Your answer is option C. Hope I answered it on time
4 0
3 years ago
Read 2 more answers
Other questions:
  • The LCD for the fraction 1/3, 3/4, 5/32, and 8/9 is
    11·2 answers
  • How many 5-person committees are possible from a group of 9 people if:
    12·1 answer
  • The inverse of a cubic function ; a type of radical function
    5·1 answer
  • a dock is 5 feet above water. suppose you stand on the edge of the dock and pull a rope to a boat at a constant rate of 2 ft/s.
    10·1 answer
  • Find the value power of 5-^2
    8·2 answers
  • Aaron is standing at point C, watching his friends on a
    9·2 answers
  • Suppose that 75 percent of the people in a certain metropolitan area live in the city and 25 percent in the suburbs. If 1200 peo
    8·1 answer
  • The radius of a circle is 10 centimeters. what is the area of a sector bounded by a 135 degree arc?
    8·1 answer
  • SCALCET8 4.7.011. Consider the following problem: A farmer with 950 ft of fencing wants to enclose a rectangular area and then d
    5·1 answer
  • Jasmine gets paid to do chores around her house. She earns $3.00 every 20 minutes that she cleans the gutters. She earns $3.60 e
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!