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klemol [59]
3 years ago
14

What are two types of scientific investigations

Mathematics
1 answer:
vazorg [7]3 years ago
6 0
Hypothesis and Analyses 
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The sum of two numbers is 53 and the difference is 27. What are the numbers?
ikadub [295]

Answer:

The numbers are 39 and 14.

Step-by-step explanation:

Equation 1, sum of the numbers:

 

x  +  y   =  53

 

Equation 2, difference of the numbers:

 

x  -  y  = 25

 

System of equations:

 

x  +  y  =  53

x  -  y   =  25

----------------

2x = 78

 

x = 39

 

Solve for y:

 

39  +  y  = 53

 

y  =  14

 

The numbers are 39 and 14.

8 0
3 years ago
I am having trouble with this question
Marta_Voda [28]
To find the area of a semicircle you would use the formula A=pie * r ^ 2 If you fill in 40 for r you would get 5026.5482
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3 years ago
What is mode and rang
abruzzese [7]

Answer:

The mode is the number that is repeated most often, but all the numbers in this list appear only once, so there is no mode. The largest value in the list is 7, the smallest is 1, and their difference is 6, so the range is 6.

Step-by-step explanation:

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3 years ago
Please help u will get brainliest
zheka24 [161]
She will need 1/2 cup of onions if she is making 12 cups of soup.
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[3p-1 < 8 or 2(p-1) < -6] and -1 <= 2p <= 3
Levart [38]

Answer:

3 p −  1  <  8 , 2 ( p  −  1 )  <  −  6 ,  −  1  ≤  2 p  ≤  3

Step-by-step explanation:

8 0
3 years ago
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