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ser-zykov [4K]
3 years ago
14

Rock layers are correlated if they both contain the same ____.

Mathematics
2 answers:
sasho [114]3 years ago
6 0
The answer is A. Elements
rjkz [21]3 years ago
5 0
The answer is a. elements
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In a sample of 57 temperature readings taken from the freezer of a restaurant, the mean is 29.6 degrees and the population stand
Natalka [10]

Answer:

(29.14 ; 30.06)

Step-by-step explanation:

Given that'

Sample size (n) = 57

Mean (m) = 29.6

Population standard deviation (σ) = 2.7

Confidence interval = 80%

= (1 - 0.8) / 2 = 0.1

Mean ± z * σ/√n

Using the Z probability calculator : Z0. 1 = 1.28

Hence,

29.6 ± 1.28 * (2.7 / √57)

29.6 - (1.28 * 0.3576237) ; 29.6 + (1.28 * 0.3576237)

29.142241664 ; 30.057758336

(29.14 ; 30.06)

8 0
3 years ago
Rob notices that 55 percent of the people leaving the supermarket chhose plastic bags instead of paper bags. out of 600 people,
Temka [501]
To solve this answer, you are trying to find 55% of 600, because that is the number of people who chose plastic bag.

55% can be re-written as 55/100 OR 0.55 since percentages are always out of 100.

So, we do 0.55*600, which gives us 330. 330 people carry plastic bags.
4 0
3 years ago
Which expression is equivalent to 21 × 7?
madreJ [45]
7 x 21 is equivalent to 21 x 7
also 3 x 49
7 0
3 years ago
What is the value of x in the equation 3/2(4−2)−3=5−(+2
vazorg [7]

Answer:

34

Step-by-step explanation:

34-34

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2 years ago
In a circle graph, each section represents a different category.<br><br><br> TrueFalse
lukranit [14]

Answer:

I believe it is true

Step-by-step explanation:

6 0
3 years ago
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