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mafiozo [28]
3 years ago
14

Help me??? with equations?? plzz im tired and this is due tomorrow

Mathematics
1 answer:
gizmo_the_mogwai [7]3 years ago
3 0

4)0/6?

5)-1/2

6)7/9

7)18/13

8)?

those are the first couple wish I could help more :(


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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
Read 2 more answers
If the area of a square is 1 square meter, how many centimeters long is each side?
Rufina [12.5K]

Square meters to square centimeters metric area units conversion factor 10000. To find out how many square centimeters in sq. meters, please use the converter below.

1 Sq. Meter = 10 000 Sq. Centimeters

Sq. meter is an area unit in metric system and used widely in measuring the small lands, floor plans etc. It equals to 10.7639104 sq. feet. The abbreviations are "m2" or "sq m".

Sq. centimeter is an area unit in metric system and defined as the area of a square whose sides are exactly one centimeter in length. It equals to 0.15500031 sq. inch. The abbreviations are "cm2" and "sq cm".


Please let me know if you need additional help in private messages.

Thanks,

-GeVontae The BRAINLY Team.

4 0
3 years ago
Help I am so confused
Greeley [361]

Answer: The second one is x^6.

Step-by-step explanation:

Idk the first one. Hope I helped!

7 0
3 years ago
HELP!
lidiya [134]

Step-by-step explanation:

So it's really easy if you read it carefully, the only thing you need to do is 63,000 - 6,922 = _____ and that's it hope it helps

3 0
2 years ago
1)The graph below shows a line segment XY:
Hitman42 [59]
The segment goes from point (-1, 3) to (1,-1)
Slope = rise / run = (-3 - 1) / (1 - (-1)) = -4 / 2 = -2
Slope = -2
5 0
4 years ago
Read 2 more answers
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