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charle [14.2K]
3 years ago
9

Explain your answer !! Have a nice day Will give braisnlt

Mathematics
2 answers:
likoan [24]3 years ago
8 0

Step-by-step explanation:

3x=15

or, x=15/3

or, x=5

now,

6x-2y=16

or, 6×5-2y=16

or, 30-2y=16

or, 30-16=2y

or, 14=2y

or, y=14/2

or, y=7

Step2247 [10]3 years ago
4 0

Answer:

It is C 5,7

6*5=30

2*7=14

30-14=16

Step-by-step explanation:

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7 0
3 years ago
PLEASE HELP ME NOW URGENT
timama [110]

ANSWER

y   = 3 \pm \sqrt{21}

EXPLANATION

The quadratic equation is:

{y}^{2}  - 6y - 12 = 0

Group variable terms:

{y}^{2}  - 6y = 12

Add the square of half, the coefficient of y to both sides.

{y}^{2}  - 6y  + ( - 3) ^{2} = 12 + ( - 3) ^{2}

{y}^{2}  - 6y  + 9= 12 + 9

The LHS us now a perfect square trinomial:

{(y - 3)}^{2}= 21

Take square root:

y - 3 =  \pm \sqrt{21}

y = 3 \pm \sqrt{21}

The first choice is correct.

8 0
4 years ago
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Step-by-step explanation:

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