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FromTheMoon [43]
3 years ago
5

What is the value of x in the equation below?-3-(-8)-(-2)=x​

Mathematics
1 answer:
qwelly [4]3 years ago
6 0

Answer: The X =7

Step-by-step explanation:

So by simplifying both sides of the equation, then isolating the variable you get the answer and find the value of x Hope this Helps

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2/3x - 21/4 = 27/4 x=
EleoNora [17]

Answer: x=-63/73

Step-by-step explanation:

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3 years ago
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For the 1,000-meter running event, Abby's mean time is 4.5 minutes with a standard deviation of 0.75 minutes. For the 800-meter
Lilit [14]

Answer:

He performed better in the 800 m race

Step-by-step explanation:

Obtain the standardized score for each event :

Zscore = (score - mean) / standard deviation

1000 meter :

Mean = 4.5 ; Standard deviation = 0.75 ; x = 4.1

Zscore = (4.1 - 4.5) / 0.75

Zscore = - 0.4 / 0.75 = - 0.5333

800 meter :

Mean = 3.2 ; Standard deviation = 0.4 ; x = 3

Zscore = (3 - 3.2) / 0.4

Zscore = - 0.2 / 0.4 = - 0.5

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Hence, he performed better in the 800 m race

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3 years ago
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Pls help <br> Are they SSS or SAS??
8090 [49]

Answer:

I think they are SAS but I'm not sure

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3 years ago
If a triangle with angle measures 40,30.and 120 centimeters possible?
vagabundo [1.1K]
No, the longest side must be less than the sum of the smaller sides or else they won't connect (try it yourself with straw or something)

40+30>120
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3 years ago
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Express 38% as a fraction in simplest form.​
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Answer:

19/50

Step-by-step explanation:

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