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Amiraneli [1.4K]
3 years ago
8

Elements vs. compounds which substance is a compound or an element ​

Mathematics
1 answer:
zaharov [31]3 years ago
3 0

Answer:

A pure substance that is made up of ONE type of atom is known as an element. So, an element would be any pure substance that is made up of a single type of atom.

A compound is the chemical combination of two or more atoms in a fixed proportion. So, a substance that is made up of two or more atoms that have chemically combined is known as a compound.

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A consumer advocate wants to collect a sample of jelly jars and measure the actual weight of the product in the container. He ne
Ivahew [28]

Answer:

n=3.8416≅4

So Minimum Sample Size is 4

Step-by-step explanation:

In order to find the minimum sample size, the formula we use will be:

n= \frac{Z^2*S^2}{E^2}

Where:

n is sample size  

Z is the distribution

S is the standard deviation

E is the  Margin of error

S=3 ,E=3

For Z:

Alpha=1-0.95=0.05

Alpha/2=0.025=2.5%

From Cumulative Standard Distribution Table:

Z at Alpha/2 = 1.960

n= \frac{1.960^2*3^2}{3^2}

n=3.8416≅4

So Minimum Sample Size is 4

8 0
3 years ago
What is the value of y?<br><br><br> A. y = -1<br><br> B. y = 0<br><br> C. y = 1<br><br> D. y = 3
OverLord2011 [107]

Step-by-step explanation:

The centroid divides the length of each median in 2:1 ratio.

The length of the part between the vertex and the centroid is twice the length between the centroid and the mid-point of the opposite side.

In case of median KM,

K is the vertex and M is the midpoint of the side JL

KT = 2× TM

5y+3 = 2(y+3)

5y+3= 2y +6

5y-2y= 6-3

3y = 3

y= 1

6 0
3 years ago
Can you please help me with number 4. 15 points and if you don't know the answer don't say anything please.
iVinArrow [24]
You know the product will be greater than the two factors because multiplication always makes the numbers greater. So 2x12 is 24 and that is greater than the two factors
6 0
3 years ago
Read 2 more answers
LOOK AT PICTURE, THEN ANWSER QUESTION, WHOEVER IS CORRECT I WILL MARK BRAINIEST:)
gregori [183]

Answer:

c is the correct answer

5 0
2 years ago
Help pleaseeeeeeeeeee
Nana76 [90]
1) 22.5

2) 16

Hope it helps sorry I cant do all of them
8 0
3 years ago
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