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statuscvo [17]
3 years ago
5

Researchers at Mississippi State University were studying the impact of different environmental sounds on ecosystems. For their

study, they created 333 similar ecosystems in their lab containing a variety of insects and plants. They randomly assigned each ecosystem to be exposed to rock music, country music, or a conventional city soundscape for two consecutive weeks. At the end of the study, they measured how successful the species were in each ecosystem. What type of experiment design is this?
Mathematics
1 answer:
4vir4ik [10]3 years ago
7 0

Answer:

The experiment design used in this case is the between-subjected design.

Step-by-step explanation:

Between-subject design is a sort of experimental design where the individuals of an experiment are allocated to varied situations, with each individual being treated with only one of the experimental conditions.

In this case three similar ecosystems are designed containing a variety of insects and plants. Then each ecosystem to be exposed to rock music, country music, or a conventional city soundscape for two consecutive weeks.

Then after two weeks period they measured how successful the species were in each ecosystem.

The experiment design used in this case is the between-subjected design.

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The degree of the polynomial function f(x) is 3.
yawa3891 [41]

Answer:

3rd graph.

Step-by-step explanation:

Roots of the equation are where the graph crosses the x axis.  So the bottom left (3rd) graph is correct.

3 0
3 years ago
0f the 64 students in grade five, 3/8 of them either walk or ride a bike to school. The rest take a bus. How many fifth graders
UkoKoshka [18]
40 fifth graders take a bus to school. 8x8= 64 so they have you a good fraction to start with to find out how many kids are walking or taking their bike (3/8) all you have to do is multiply 3 and 8 which equals 24 to find the fraction of the amount of kids who take the bus you subtract 3 from 8 which gives 5/8 and to get the answer you multiply 5 and 8 which is 40.
3 0
3 years ago
and what the length of the ramp between the building is _______ feet. (round to the nearest tenth of a foot)
nirvana33 [79]

Answer:

i. think. its. c.

5 0
3 years ago
find an equation of the line that has a y-intercept of 5 and is parallel to the graph of the line x+6y=6
agasfer [191]

Answer:the first option

Step-by-step explanation:

4 0
2 years ago
What is the length of the unknown side?
777dan777 [17]

Answer:

Hi there!

The correct answer is: 20

Step-by-step explanation:

knowing this a right triangle you can solve this problem in two ways

Method One: Pythagorean Theorem

a^2 + b^2 = c^2 then plug in the values

(12)^2 + (16)^2 = c^2 this will come out to be 400 = c^2

square root both sides and you get c = 20

Method Two: Pythagorean Identities

if you ever learned the Pythagorean identity 3,4,5

this triangle is indeed a 3,4,5 triangle it's just that each side is multiplied by the factor 4

so in this case since you know the missing side should be 5 you just multiply 5 by 4 and you get 20

 

4 0
3 years ago
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