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mart [117]
3 years ago
13

Consider the experimental situation described below. Ability to grow in shade may help pines in the dry forests of Arizona resis

t drought. How well do these pines grow in shade? Investigators planted pine seedlings in a greenhouse in either full light or light reduced to 5% of normal by shade cloth. At the end of the study, they dried the young trees and weighed them. Identify the experimental unit(s) or subject(s)?
a) shade cloth

b) pine tree seedlings

c) drought resistance

d) greenhouses

e) rainy seasons
Mathematics
1 answer:
USPshnik [31]3 years ago
3 0

Answer:

The experimental subjects are pine tree seedlings .

Step-by-step explanation:

The physical entity to which the treatment is assigned at random is known as experimental unit .  

The same treatment cannot be received by two experimental units, they have to different treatments. The selection of experimental units plays an important role to determine the p-values in the statistical analysis. The experimental units are divided into different homogeneous groups called blocks.

From the question, the experimental subjects identified are pine tree seedlings.

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Step-by-step explanation:

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8 0
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3 years ago
Simplify 3 over 2 x 3 over 2 exact answer
nikitadnepr [17]

ANSWER : 9 over 4

or 2 and 1/4

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

*3 over 2 x 3 over 2 is 3/2 x 3/2* << this is for me to remember

Okay so multiplying fractions means for us to multiply across. That means if we line the fractions, we multiply. Like this

 3     x     3

-----         -----                3 times 3 is = 9

 2     x     2                  2 times 2 is = 4

9 over 4 is the same thing as 2 and 1/4  << FRACTION    

                                                ^^      

                                           WHOLE

Hope I helped (:

8 0
2 years ago
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1.75x+1.25y=2<br> 7x+5y=9<br> how many solutions does this system of equations have?
Vlad1618 [11]

Answer:

true 7x+5y=9

Step-by-step explanation:

7 0
3 years ago
Please, help im being timed !!!
Agata [3.3K]
B (2x+5y=-10) is the answer.
3 0
2 years ago
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