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ra1l [238]
3 years ago
7

What is the Value of X? 8 10 13 20

Mathematics
2 answers:
Kruka [31]3 years ago
8 0

Answer:

answer is 20

Step-by-step explanation:

just took the test

aleksandrvk [35]3 years ago
6 0

Answer:20

Step-by-step explanation:

D

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A researcher designs an experiment by manipulating the following variables: temperature (low or high), illumination level (low o
lesya [120]

Answer:

10

Step-by-step explanation:

As it could be inferred from the name, repeated measure design may be explained as experimental measures involving multiple (more than one) measures of a variable on the same observation, subject or participants which are taken at either various times or periodic intervals, different levels, different conditions. Hence, a repeated measurement taken with the same sample but under different treatment conditions. Therefore, since the measurement will be performed on a the same subjects(paired) , then the number of subjects needed will be 10. As it is this same samples that will be used for the other levels or conditions.

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3 years ago
Find the measure of the indicated angle to the nearest degree.
777dan777 [17]
I think it’s 68 degrees. hope it helps!
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3 years ago
Diego estimated that he has 200 rocks in his collection. He counted them and he has 160 rocks. What is his percent error?
nexus9112 [7]

Answer:

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Step-by-step explanation:

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160/200=0.8

move the decimal point over to the right 2 times

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3 years ago
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Sphinxa [80]
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3 0
3 years ago
Solve: x^4-34x^2=-225
dangina [55]
X
4
−34x
2
+225=0

2 Factor
x
4
−
34
x
2
+
225
x
4
−34x
2
+225.
(
x
2
−
25
)
(
x
2
−
9
)
=
0
(x
2
−25)(x
2
−9)=0

3 Solve for
x
x.
x
=
±
5
,
±
3
x=±5,±3
8 0
3 years ago
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