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Otrada [13]
3 years ago
8

Jimmy wanted to create a study to test the effects of jazz on people's sleep patterns. He thought that if people listened to jaz

z music as they fall asleep, they will sleep for longer periods of time. For the experiment, 2 groups of 10 people were created. The test was conducted in a sleep lab
facility with each room being exactly identical. One group was placed in a quiet room where they went to sleep and they were timed on how long they slept. The other group 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.

Constants:
Control Group:
Dependent Variables:
Independent variable:
Hypothesis:
Mathematics
1 answer:
mars1129 [50]3 years ago
3 0

Answer:

if you listen to jazz you might learn a little more about there culture

Step-by-step explanation:

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I need help please and thanks
Akimi4 [234]
Perimeter of rectangle = all sides added
= 3+3+7+7 =20


volume of sphere = 4/3 x π x r(cubed)
= 4/3 x π X 4(cubed)
= 268.08257

area of triangle = base x height / 2
= 5 x 6 / 2
=30/2 =15

volume of pyramid = base height x base width x height / 3
= 300

side of triangle ---> use Pythagoras theorem so a(squared) + b (squared) = c(squared)
4(squared) + 3(squared) = c(squared)
16 + 9 = c(squared)
25 = c(squared)
c = 5


yw sis xoxoxo





7 0
2 years ago
Express 2log 4 + 3log 2 as a single logarithm
jeka94

Answer:

Step-by-step explanation:

WHEN ADDING TWO LOGS TO COMPRESS THEM YOU MULTIPLY THE TERMS

LOG(4^2)(2^3)

LOG(16)(8)

LOG(128)

3 0
3 years ago
Are all whole numbers natural numbers?
RideAnS [48]

Answer:The whole numbers are the numbers 0, 1, 2, 3, 4, and so on (the natural numbers and zero). Negative numbers are not considered "whole numbers." All natural numbers are whole numbers, but not all whole numbers are natural numbers since zero is a whole number but not a natural number.

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
A train is traveling at a constant speed of 90 miles per hour. How many feet does it travel in 10 seconds? Remember that 1 mile
Flauer [41]

Hi

1 mile = 5280 feet  

at  90 mile per hour, you have  5280 *90  = 475 200 feets  

an hour is  60*60 = 3600 second  

so in 1 second the train travel  :  475 200 /3600 = 4752 /36 = 132 feets

so in 10 seconds  :  132*10 = 1320 feets.

7 0
3 years ago
Which irrational number is represented by point D?
Leno4ka [110]

Answer:

it is 182

Step-by-step explanation:

182= 13.49

162= 12.73

204= 14.28

221=14.87

7 0
2 years ago
Read 2 more answers
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