2 years ago

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Mathematics

1 answer:

Darya [45]2 years ago

7 0

Answer: 6/5

Step-by-step explanation:

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Y = -4x + 3<br> 8x + 2y = 8<br> Solve by using elimination.

ValentinkaMS [17]

Answer:

The equations are not compatible

Step-by-step explanation:

y = -4x + 3

8x + 2y = 8

substitute for y:

8x + 2(-4x + 3) = 8

simplify:

8x - 8x + 6 = 8

6 ≠ 8

3 0

2 years ago

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oksano4ka [1.4K]

Answer:

Step-by-step explanation:

$x=5+i\sqrt{7} , y = 5-i\sqrt{7}\\ x^2-2xy+y^2=(x-y)^2\\ (x-y)^2=(2i\sqrt{7} )^2\\4.i^2.7\\-28$

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2 years ago

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Show that the points A(2,-2), B(14, 10), C(11, 13) and

Vedmedyk [2.9K]

Answer:

is not a rectangle

Step-by-step explanation:

The midpoints of the diagonals are ...

AC midpoint = ((2, -2) +(11, 13))/2 = (13/2, 11/2)

BD midpoint = ((14, 10) +(-2, 1))/2 = (6, 11/2)

The midpoints of the diagonals are different, so this is not a rectangle or any sort of parallelogram.

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3 years ago

How do I solve this step by step?

Zinaida [17]

Answer:

Step-by-step explanation:

plug in 3 where the xs are

2(3)(6(3)-5(3))+(3)^2(5(3)-4(3)=45

2(3)=6

6(3)=18

-5(3)=15

(3)^2=9

5(3)=15

-4(3)=-12

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3 years ago

URGENT PLEASE HELP! What is the slope of the line <br> y = -2x - 4?

Tju [1.3M]

Answer:

-2 is the slope

Step-by-step explanation:

4 0

2 years ago