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Inessa05 [86]
3 years ago
5

Which sentence demonstrates the multiplicative identity?

Mathematics
2 answers:
nasty-shy [4]3 years ago
6 0

Answer:

The answer is actually A

Step-by-step explanation:

ella [17]3 years ago
3 0
C
Explanation
I took the test.
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Lea walked 1/2 mile in 1/3 hour. How long will it take lea to walk 2 1/4 miles ?
cluponka [151]

takes her 20 minutes to walk 1/2 a mile  

2 miles=80 minutes  

1/4= 10 minutes i think  

so 80+10=1 1/2

{This is not my work!!!}

5 0
3 years ago
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PLEASE HELP If You Are not SURE please don't answer PLEASE show work and steps
Ivanshal [37]
63+12x<15
12x<-48 (subtract 63 from both sides)
x<-4 (divide out the 12)
8 0
3 years ago
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Need help with a couple of geometry word problems. Giving 100 points, tysm if you help :)
dlinn [17]

Answer:

Hope it helps

Step-by-step explanation:

1: B

2: B

3: D

4: C

5: A

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3 years ago
What is 2 to the 10 power
Svet_ta [14]
2^10 is equal to 1024 (one thousand and twenty four)
3 0
2 years ago
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In a study published on January 31, 2011 in The Proceedings of the National Academy of Sciences, researchers randomly assigned 1
Kaylis [27]

Answer:

d.

Step-by-step explanation:

Hello!

The objective of this test is to know if aerobic exercise modifies hippocampus activity. A random sample of 120 elderly men and women was taken and divided into two groups.

Group 1: Walked around a track three times a week.

Group 2: Did a variety of less aerobic exercises, including yoga and resistance training with bands.

After a year their brains were scanned showing that group 1 had an increase of 2% in their hippocampus and group 2 showed a decrease of 1.4%

a. True, this type of observational study can be the prelude to a more formal statistical study.

b. True, the explanatory variable is "type of exercise", it's the variable that the investigator suspects influence the hippocampus volume.

c. True, the objective of this experiment is to test if there is any modification on hippocampus volume, that's why the volume of the hippocampus was measured, before and after a year of exercise.

d. False, this is an observational study, you cannot establish a causal relationship between the two variables. Just inform you that there seems to be an association. To be able to generalize the results to all elderly population you need a more formal statistical experiment to support your conclusions.

I hope it helps!

5 0
3 years ago
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