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My name is Ann [436]
3 years ago
13

Explain how the number of pieces in a whole relates to the size of each piece

Mathematics
2 answers:
Stella [2.4K]3 years ago
6 0
The more pieces there are in a whole, the smaller the size of those pieces are.
katovenus [111]3 years ago
5 0
Let's take 1/3 as an example. The number of pieces in a whole are all thirds. Each piece has equal parts. 1/3+1/3+1/3=3/3 which equals 1. All the parts are equals because they all add up to 1 whole. Hope this was helpful!!
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2000 is what bigger than 2?
Leya [2.2K]
It is 1,998 bigger than 2.
7 0
3 years ago
4a to 3rd power b to 4power times b to 3rd power times 2b to 3rd power divided by 4b
ddd [48]

(4a^3b^4(b^3)(2b^3))/4b


4a^3b^3(b^2)(2b^2)/4

5 0
3 years ago
If a+b+c=0 for a,b,c then prove a²/bc+b²/ca+c²/ab=3.
Ierofanga [76]
According to the identity if a+b+c=0
then a3+b3+c3=3abc
a3+b3+c3/abc=3
a2*a/bc*a+b2*b/ca*b+c2*c/ab*c=3
cancel a,b,c in   all the fraction then you get
<span>a²/bc+b²/ca+c²/ab=3. 
</span>hence proved


5 0
3 years ago
Based on information from Harper’s Index, 37% of adult Americans believe in Extraterrestrials. Out of a random sample of 100 adu
san4es73 [151]

Answer:

z(s)  is in the rejection zone , therefore we reject H₀

We have enough evidence to claim the proportion of individuals who attended college and believe in extraterrestrials is bigger than 37%

Step-by-step explanation:

We have a prortion test.

P₀  =  37 %         P₀  = 0,37

sample size  =  n  =  100

P sample proportion   =   P  = 47 %        P  =  0,47

confidence interval  95 %

α  =   0,05  

One tail-test  (right tail) our case is to show if sample give enough information to determine if proportion of individual who attended college is higher than the proportion found by Harper´s index.

1.-Hypothesis:

H₀      null hypothesis                        P₀  =  0,37

Hₐ  alternative hypothesis                P₀  >  0,37

2.-Confidence interval 95 %

α  =   0,05        and    z(c)  =  1.64

3.-Compute of z(s)

z(s)  =  [  P  -  P₀  ]  /√(P₀Q₀/n) ]  

z(s)  =  [ (  0,47  -  0,37  ) /  √0.37*0,63/100

z(s)  = 0,1 /√0,2331/100     ⇒   z(s)  = 0,1 /0,048

z(s)  = 2.08

4.-Compare  z(s)   and  z(c)

z(s) > z(c)        2.08  > 1.64

5.-Decision:

z(s)  is in the rejection zone , therefore we reject H₀

We have enough evidence to claim the proportion of individuals who attended college and believe in extraterrestrials is bigger than 37%

5 0
3 years ago
2х + 7y = 1<br> 2х - 4y = 12
solong [7]

Answer:

What is the question or only

6 0
3 years ago
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