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1 year ago

Find the x-intercept of the line whose equation is 8x + 2y = 4.

Mathematics

1 answer:

horrorfan [7]1 year ago

8 0

Answer: Hope this helps you

1/2

Step-by-step explanation:

To find the x-int of any equation, you will need to replace the y with a 0 since when the x-int is when y is 0.

8x+2y = 4 ➨ 8x+2*0 = 4

Now I will do 2*0 which anything times 0 is equal to 0. And we are left with the equation of:

8x = 4

Now I will divide both sides by 8, which isolates our x.

x = 1/2

The x-int is 1/2.

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3 years ago

If G is the circumcenter of triangle ABC, AG = 6x + 1, GC = 9x – 11, and BC = 38, find GF.

maks197457 [2]

Answer:

GF = 16.25

Step-by-step explanation:

If G is the circumcenter of triangle ABC, AG = 6x + 1, GC = 9x – 11, and BC = 38, find GF.

Step 1

We find x

AG = GC

6x + 1 =9x - 11

Collect like terms

1 + 11 = 9x - 6x

12 = 3x

x = 12/3

x = 4

Step 2

We solve for AG

GC = 9x + 11

GC = 9(4) + 11

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GC = 25

Step 3

Solving for GF, using Pythagoras Theorem

GF² + BG² = GC²

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2 years ago

(x+x)^2 × -(x×(-1))=4+x-x^2 solve for x, show work.

Anna71 [15]

Answer:

x = 1

x = -5/8 + i* root( 39) / 8

or x = -5/8 - i* root( 39) / 8

Step-by-step explanation:

(x+x)^2 × -(x×(-1))=4+x-x^2

solve for x, show work.

(x+x)^2 × -(x×(-1)) = 4+x-x^2

Simplify:

(2x)^2 * (-(-x)) = 4 + x - x^2

4x*x * (-(-x)) = 4 + x - x*x

4*x*x*x = 4 + x - x*x

4*x*x*x - 4 = x *(1 - x)

4* (xxx - 1) = x * (1- x)

4* (x - 1)*( x*x +x + 1) = x (1 - x)

4( xx + x + 1) = -x

x = 1 is a solution.

4xx + 4x + 4 = -x

4xx + 5x + 4 = 0

x = -5/8 + root(25 - 4*4*4) / 2*4

x = -5/8 + i* root( 39) / 8

or x = -5/8 - i* root( 39) / 8

also x = 1

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