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Archy [21]
3 years ago
5

How do you factor x^2 - 2x - 2 = 0

Mathematics
1 answer:
Maru [420]3 years ago
5 0

Answer:


Step-by-step explanation:Step 1: Use quadratic formula with a=1, b=-2, c=-2.

x=

−b±√b2−4ac

2a

x=

−(−2)±√(−2)2−4(1)(−2)

2(1)

x=

2±√12

2

x=1+√3 or x=1−√3

Answer:

x=1+√3 or x=1−√3


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Quick I need help 23 and 24 easy seventh grade math
Alekssandra [29.7K]

Answer:-14, -26

Step-by-step explanation:

13-4=9

4-9=-5

From here you can see that the pattern is -9

-5-9=-14

23. is -14

16-2=14

2-14=-12

From here you can see that the pattern is -14

-12-14=-26

24. is -14

6 0
3 years ago
At a picnic there were 3 times as many adults as children and twice as many women as men. If there was a total of x men, women,
Dennis_Churaev [7]

Answer:

\dfrac{x}{4}

C is correct.

Step-by-step explanation:

At a picnic,

Number of adults is 3 times as number of children.

Number of women is twice as number of men.

Total number of men, women and children at the picnic be x

Let number of children be c

Let number of men be m

Let number of women be w

# Number of women is twice as number of men, w = 2m

# Number of adults is 3 times as number of children, w + m = 3c

      2m + m = 3c     (∴  w=2m )

                c = m

Total number of men, women and children at the picnic be x

∵       c + m + w = x

     m + m + 2m = x

                    4m = x

Number of men, m=\dfrac{x}{4}

Hence, The total number of men will be  \dfrac{x}{4}

5 0
3 years ago
Really need help not good in geometry
Mandarinka [93]

Answer:18

Step-by-step explanation:It is the same shape just 3 times the size.

4 0
3 years ago
If your friend Doug is on a balcony and asks you to throw him a donut, how many stories up can he be and you would still feel co
Katena32 [7]
The building that I would imagine would be 40 stories, about 404 feet tall perhaps. If he were to throw the donut from that distance until the ground, catching it would be impossible. So no, I am not confident in catching the donut all the way there. 
8 0
3 years ago
The temperature has been dropping 2 1/2 degrees every hour and the current temperature is -15°f. How many hours ago was it 0°f?
beks73 [17]

Answer:

6 hours ago

Step-by-step explanation:

6 hrs x 2.5 degrees = 15 degrees

5 0
2 years ago
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