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vredina [299]
3 years ago
8

Simplify the expession 3.7 - 1.8 - 3.67 + 4.4 - 1.34

Mathematics
2 answers:
Firdavs [7]3 years ago
8 0
<span>3.7 - 1.8 - 3.67 + 4.4 - 1.34 = </span>1.29
antoniya [11.8K]3 years ago
3 0
The answer to this would be 1.29

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Find an equation of the circle that satisfies the given conditions. Endpoints of a diameter are P(−2, 1) and Q(8, 9)
IrinaK [193]

Answer:

Equation of the circle   (x-3)²+(y-5)²=(6.4)²

                             x² -6x +9 +y² -10y +25 = 40.96

Step-by-step explanation:

<u><em>Step(i):-</em></u>

Given endpoints of diameter P(−2, 1) and Q(8, 9)

Centre of circle = midpoint of diameter

                   Centre = (\frac{-2+8}{2} ,\frac{1+9}{2} )

               Centre (h, k) = (3 , 5)

<u><em>Step(ii):-</em></u>

The distance of two end points

PQ = \sqrt{(x_{2}-x_{1} )^{2} +(y_{2} -y_{1} )^{2}  }

PQ= \sqrt{(8+2 )^{2} +(8 )^{2}  }

PQ = √164 = 12.8

Diameter    d = 2r

                 radius r = d/2

                Radius r = 6.4

<u><em>Final answer:-</em></u>

Equation of the circle  

                    (x-h)²+(y-k)² = r²

                   (x-3)²+(y-5)²=(6.4)²

x² -6x +9 +y² -10y +25 = 40.96

x² -6x  +y² -10y  = 40.96-34

x² -6x  +y² -10y -7= 0

4 0
3 years ago
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Idk what I should do
GREYUIT [131]

Answer:

c.

Step-by-step explanation:

All of the things are correct with this one.

5 0
3 years ago
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topjm [15]

Answer:

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Step-by-step explanation:

You would subtract 1.60 from 29.20 to get 27.60. Then you would divide by two because there were two CDs and get $13.80

7 0
3 years ago
What is the relationship between 5,000 and 500,000
solong [7]
5000 is 1/100 of the value of 500,000
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3 years ago
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