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DENIUS [597]
2 years ago
8

Solve 2x2 – 3x = 12 using the quadratic formula.

Mathematics
1 answer:
icang [17]2 years ago
8 0

Quadratic Formula: (-b +/- sqrt(b^2 - 4ac)) / 2a

2x^2 - 3x = 12

2x^2 - 3x - 12 = 0

a = 2

b = -3

c = -12

(--3 +/- sqrt( (-3)^2 - 4(2)(-12) )) / 2(2)

3 +/- sqrt( 9 + 96 ) / 4

3 +/- sqrt(105) / 4

Answers: \frac{3 + \sqrt{105} }{4}, \frac{3 - \sqrt{105} }{4}

Hope this helps!

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laila [671]

Answer: -4x+c

Step-by-step explanation:

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8 0
2 years ago
Which set of numbers represents the domain for the following table below
elena-14-01-66 [18.8K]

Answer:

21

Step-by-step explanation:

21

8 0
3 years ago
What is the third quartile of this data set 20,21,24,25,28,29,35,37,39,42,44
dezoksy [38]

Answer:

The third quartile would be <u>39</u>.

Step-by-step explanation:

• Since the numbers are already in order, the next step would be to find the median:

- The <u>median</u> is the middle number; found by ordering all data points and picking out the one in the middle.

  • The median would be 29.

• The <u>first quartile</u>, is denoted as Q1 and is the middle number that falls between the smallest value of the data set and the median.

  • The first quartile would be 24.

• The <u>third quartile</u>, is denoted as Q3 and is the median of the upper half of the data set.

  • The third quartile would be 39.

If I helped, please mark me the Brainliest!?!

6 0
2 years ago
The first step in solving 7/8 = 3x - 5/11 is to subtract 5/11 from both sides of the equation.
Ostrovityanka [42]
False because -5/11 should be add on both sides
3 0
2 years ago
7(6m - 4) = -364 pls try and show work thanks!
quester [9]

Answer:

7(6m - 4) = -364

multiply 7 for both variables in the parenthesis

42m - 28 = -364

move 28 to other side

42m= -336

divide 42 on both sides

m= -8

3 0
2 years ago
Read 2 more answers
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