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Anettt [7]
2 years ago
8

PLZZZ HELP ASAP completly clueless

Mathematics
1 answer:
Ede4ka [16]2 years ago
7 0

Answer:

c

Step-by-step explanation:

quadratic formula:  -b±√b²-4ac/ 2a

a= -10

b= 12

c= -9

-12±√144- 4(-10)(-9)/ 2(-10)

-12±√144- 360/ -20

-12±√-216/-20

6±3i√6/ 10

simplify: 3/5± 3i√6/10

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(9, 19) (2, 16)<br> Write the coordinates as decimals or integers.
9966 [12]

Answer:

In decimal 0.428571428

Step-by-step explanation:

The slope = (y2 - y1)/(x2 - x1) y2 = 16, y1 = 19x2=2 and x1=9

The slope = (16 - 19)/(2 -9)

The slope = (-3)/(-7)

The slope = 0.428571428

So in decimal form the coordinates are going to be written as 0.428571428

Slope is the steepness of a line, it is the difference between the y coordinates divided by the difference in x coordinates.

6 0
3 years ago
Help plz<br>6(2x - 11) + 15 = 3x + 12​
Ket [755]

Answer:

x = 7

Step-by-step explanation:

Lets do the brackets first,

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Calculate the x constant:

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Then the ones with no x:

-66 + 15 = -51

51 + 12 = 63

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Lastly, divide

63 ÷ 9 = 7

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Have a good day :)

3 0
2 years ago
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Alexxandr [17]

Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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The table lists how financial aid income cutoffs (in dollars) for a family of four have changed over time. Use the midpoint form
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3 years ago
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