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OverLord2011 [107]
2 years ago
8

First answer will get brainlest and 5 stars and a thanks by me

Mathematics
1 answer:
Artist 52 [7]2 years ago
5 0

Answer:

4 seconds

Step-by-step explanation:

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Please hurry I need the answer
timama [110]

Answer:

4.12

Step-by-step explanation:

A^2+b^2=c^2 so 8^2+b^2=9^2 so 64+b^2=81 so b^2=17 so b=4.12

7 0
3 years ago
5÷6 is 5/6. What is 1/6 of 5?
Vlad [161]

Answer:

5/6

Step-by-step explanation:

1/6 of 5 is the same:  (1/6)(5) = 5/6

8 0
3 years ago
Shelley designed the patio below, in which one side of the patio is a wall of the house. The length of each side of a square on
Nana76 [90]
$120 because the fencing of the patio would use up eight squares and each square in the picture is 3 meters so we would need 24 meters of fencing to cover up the entire patio. Since it cost $5 for one meter, 5*24 is $120.
3 0
3 years ago
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A small independent organic food store offers a variety of specialty coffees. To determine whether price has an impact on sales,
lorasvet [3.4K]

Answer:

b= -4.68

Step-by-step explanation:

Hello!

We have to study variables:

Y: Monthly coffe sales

X: Price per pound of coffe ($)

The estimate regression line is

^Yi= a + bxi ∀ (i=1,.....,10)

The slope of the estimated regression line is represented by b.

The formula I'll use to calculate it is:

b= [n∑xiyi -(∑xi)*(∑yi)]/ n∑xi²-(∑xi)²

To calculate b we need to do some auxiliary calculations:

∑xiyi= 4213.15

∑xi= 87.47

∑yi= 545

∑xi²= 883.3703

Then we replace the formula:

b= [10*4213.15-(87.47)*(545)]/ n883.3703-(87.47)²

b= -4.68

I hope you have a SUPER day!

5 0
3 years ago
Please helpppppppppppppppppppppppppppppppppppp
Pani-rosa [81]

Step-by-step explanation:

  • (2×10^8)(2×10^-2)
  • 4×10^8+(-2)
  • 4×10^6

<h3>stay safe healthy and happy.</h3>
6 0
3 years ago
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