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Svetllana [295]
3 years ago
11

Use your graph to estimate solutions to the equation x2-2x-1=0

Mathematics
1 answer:
garri49 [273]3 years ago
3 0

There are 2 real solutions to the equation.  Evaluate  the discriminant = 8.             Using the quadratic formula = What is on the picture.

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Please help me I need to get this right asap
lbvjy [14]

Answer:

B

Step-by-step explanation:

8 0
3 years ago
What is 6n-10=8 show me how to do this problem
Lady bird [3.3K]

Answer: n=3

Step-by-step explanation:

6n-10=8

6n=18

n=3

You start by adding 10 to both sides and then divide both sides by 6.

4 0
3 years ago
HELP FAST 100 POINTS 100 POINTS What is the value of the expression when a = 5, b = 4 , and c = 6?⁢ 4a2b−c 2 5 9 10
ohaa [14]

For this case we must find the value of the following expression:

4a ^ 2b-c

When:

a = 5\\b = 4\\c = 6

Substituting the given values we have:

4 (5) ^ 2 * 4-6 =\\4 (25) (4) -6=\\400-6 =\\394

Finally, the value of the expression is 394.

Answer:

The value of the expression is 394.

3 0
3 years ago
Read 2 more answers
the metro train costs $6.30 round trip to ride to work each day. you work 4 days a week (16 days a month). if you can get a mont
Arlecino [84]
The first step is finding how much the metro cost to ride monthly since its a monthly pass. If she rides 16 times for 6.30 every time then you multiply them you should get 100.8. now subtract the original cost before the monthly pass to after. you should get 22.8
3 0
3 years ago
Ok um chile what is 10/11+1/2 if you cant answer this than das oki but plz do :v
V125BC [204]

Answer:

I believe it's 1.333

Step-by-step explanation:

7 0
3 years ago
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