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Gwar [14]
3 years ago
7

Solve the following equation for x.

Mathematics
1 answer:
Drupady [299]3 years ago
5 0

Answer:

6 {x}^{2}  + 54x + 120 = 0 \\ factors :  4 \: and \:  5 \\ =  (6x  + 24)(x + 5) \\   =  > x =  -4 \: and \:  - 5

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There are 15 cards numbered 1 through 15. What is thee probability that you choose a 5 or a 9
Trava [24]

Answer:

2/15

Step-by-step explanation:

There is only one card with the number 9, and only one with the number 5.

So 5 and 9 are two out of fifteen (2/15).

8 0
3 years ago
Solve the equation by completing the square x^2-3x-18=0
Alexandra [31]

Answer:

x = -3, 6

Step-by-step explanation:

First, add 18 to both sides

x² - 3x - 18 = 0

           + 18    + 18

x² - 3x = 18

Add 9/4 to both sides because that is the square of half of -3

x² - 3x + 9/4 = 18 + 9/4

Multiply both sides by 4 to get rid of the fractions

(x² - 3x + 9/4 = 18 + 9/4)4

4x² - 12x + 9 = 72 + 9 = 81

Factor the left side of the equation

(2x - 3)² = 81

√(2x - 3)² = √81

Because of the square root, this will result in a positive number and a negative number

2x - 3 = 9

2x - 3 = -9

For both equations, add 3 to both sides then divide by 2

2x - 3 = 9

     + 3   +3

2x = 12

2x/2 = 12/2

x = 6

2x - 3 = -9

    + 3   + 3

2x = -6

x = -3

4 0
2 years ago
What is the solution for the following equation 3(2x+3)=2(3x+4)?
ki77a [65]

Answer:

<h2><u><em>no solution, the equation is false</em></u></h2>

Step-by-step explanation:

what is the solution for the following equation 3(2x+3)=2(3x+4)?

3 * (2x + 3) = 2 * (3x + 4)

6x + 9 = 6x + 8

6x - 6x = -9  + 8

0 = ±1

the equation is false

7 0
2 years ago
Read 2 more answers
PLSSSS HELP ME WITH THIS QUESTION!!!
Lesechka [4]

Answer:

18 since you have 13nd 3 that equal

3 0
3 years ago
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an airplane uses 79% of a tank of fuel to fly 1,496 miles. If a full tank holds 996 gallons of fuel, how many gallons would the
bekas [8.4K]
It would take roughly 1586.3031 gal to fly 3016 mi
4 0
4 years ago
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