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Dafna1 [17]
3 years ago
6

What is the solution to this system of linear equations?

Mathematics
1 answer:
kicyunya [14]3 years ago
7 0

Answer:

A) y - x = 6

B) y + x = -10   Let's add both equations:

2 y = -4

y = -2

From equation A) we see x is -8

The first answer is correct

Step-by-step explanation:

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suppose a triangle has two sides of length 2 and 3 and that the angle between these two sides is 60. what is the length of the t
arlik [135]

Answer:

  √7 ≈ 2.646

Step-by-step explanation:

The law of cosines is applicable. It tells you ...

  c² = a² + b² - 2ab·cos(C) . . . . . where a, b, c are triangle side lengths, and angle C is opposite side c.

Filling in the given information, you have ...

  c² = 2² + 3² - 2·2·3·cos(60°) = 4 + 9 - 12·(1/2) = 7

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The length of the third side is √7, about 2.646 units.

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The data shows the total number of employee medical leave days taken for on-the-job accidents in the first six months of the yea
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Step-by-step explanation:

The sum of squares of the deviation from mean=sum(x-xbar)²=?

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12      12-12=0      0

sum(x-xbar)²=0+36+9+9+36+0=90

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