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Aloiza [94]
3 years ago
13

(14+13n+3n^3)+(2+4n+9n^3)

Mathematics
2 answers:
Sliva [168]3 years ago
8 0

Answer:

=12n3+17n+16

i hope this helps :)

icang [17]3 years ago
3 0

Answer:

12n^3+17n+16

Step-by-step explanation:

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A circle passes through point (-2, -1) and its center is at (2, -1). Which equation represents the circle?
ludmilkaskok [199]

The choices are missing, but we can solve the problem from the given information

Answer:

The equation which represents the circle is (x - 2)² + (y + 1)² = 16

Step-by-step explanation:

The form of the equation of a circle is (x - h)² + (y - k)² = r², where

  • (h , k) are the coordinates of its center
  • r is the radius of it

∵ The coordinates of the center of the circle are (2 , -1)

∴ h = 2 and k = -1

The radius of the circle is the segment whose join the center of the circle and any point on the edge of the circle

∵ The circle passes through point (-2 , -1)

∴ The radius of the circle is the distance from the center (2 , -1)

    and the point (-2 , -1)

The y-coordinates of the two points are equal that means the radius is a horizontal segment and its length is the difference between their x-coordinates

∵ r = 2 - (-2)

∴ r = 4

Now let us substitute h, k, and r in the form of the equation of the circle

∵ (x - 2)² + (y - -1)² = (4)²

∴ (x - 2)² + (y + 1)² = 16

The equation which represents the circle is  (x - 2)² + (y + 1)² = 16

7 0
2 years ago
Which expression is equivalent to 12(3x + 2y)?
natima [27]
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8 0
2 years ago
The school cafeteria has 285 cartons of juice in stock. Each day a total of 60 cartons are sold. If the x is the number of days
shutvik [7]

Answer:

285-60x

Step-by-step explanation:

I'm not sure if that's a function rule but you can solve for x from that expression.

285-60x

Subtract 285

-60x=-285

Divide by -60 on both sides

X= 4.75

Hope this helped :/

4 0
3 years ago
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