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gulaghasi [49]
3 years ago
12

Solve: (-2)(-1)-3) =

Mathematics
1 answer:
Anettt [7]3 years ago
6 0

Answer:

-6

Step-by-step explanation:

its -6 because you do -2 times -1 and dats 2 and then 2 timesb-3 and thats -6

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Find a formula for the nth term
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Step-by-step explanation:

an = 2.5n -0.2

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A.2/7<br> B.3/7<br> C.5/7<br> D.4/7
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Answer:

  • The C indicates the opposite of that
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3 0
3 years ago
Read 2 more answers
4. Stella says the equation x^2−8x+y^2+2y=5 has a center of (4,−1) and a radius of 5. Is she correct? Why or why not?
Ostrovityanka [42]
<h2>Stella is correct about center and wrong about radius      </h2>

Step-by-step explanation:

Equation of circle with (h,k) as center and radius r is given by,

          (x-h)²+(y-k)² = r²

Here equation is

          x²−8x+y²+2y=5

Changing in to (x-h)²+(y-k)² = r² form

           x²−8x + 16 - 16 +y²+2y+1 - 1=5  

           (x-4)² - 16 + (y+1)² -1 = 5

           (x-4)²  + (y+1)²  = 22

           (x-4)²  + (y+1)²  = 4.69²

           Center is (4,-1) and radius is 4.69

Stella is correct about center and wrong about radius            

8 0
3 years ago
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