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inysia [295]
3 years ago
12

Solve for x: 8x + 2 + 4 = 2x - 6 X=?

Mathematics
1 answer:
muminat3 years ago
8 0

Answer:

x = -2

Step-by-step explanation:

8x + 2 + 4 = 2x - 6

8x - 2x = - 6 - 2 - 4

6x = -12

x = -12/6

x = -2

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Find the center, vertices, and foci for the ellipse 25x^2+64y^2=1600
Ronch [10]

Answer:

Step-by-step explanation:

Answer:

Data

Equation               25x² + 64y² = 1600

Process

1.- Divide all the equation by 1600

                            25x²/1600 + 64y²/ 1600 = 1600/1600

-Simplify

                             x²/64 + y²/ 25 = 1

2.- Equation of a horizontal ellipse

                            

3.- Find a, b and c

   a² = 64             a = 8

   b² = 25             b = 5

-Calculate c with the Pythagorean theorem

                  a² = b² + c²

-Solve for c

                  c² = a² - b²

-Substitution

                  c² = 8² - 5²

-Simplification

                 c² = 64 - 25

                 c² = 39

-Result

                 c = √13

4.- Find the center

         C = (0, 0)

5.- Find the vertices

         V1 = (-8, 0)     V2 = (8, 0)

6.- Find the foci

         F1 = (-√13, 0)   F2 = (√13, 0)

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3 years ago
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Melissa is making clothes for her dolls she has 7/8 yard of fabric each doll shirts require 2/7 of a yard of fabric. how many sh
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7/8 / 2/7 =

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3 years ago
Someone do this thanks
Arturiano [62]

Answer:

2

Step-by-step explanation:

12-2= m(2+3)

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2 years ago
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