1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
makvit [3.9K]
3 years ago
6

Can someone help me with this :/

Mathematics
1 answer:
slavikrds [6]3 years ago
5 0

Answer:

2x² + x - 1 = 0

a= 2 b= 1 c= -1

x = [ -b +- sqr rt( b^2 -4ac) ] / 2*a

x = -1 +- sqr rt (1 - 4 *2*-1) / 4

x1 = [ -1 + (sqr rt (1 +8)) / 4

x1 = ( -1 + sqr rt (9)) / 4

x1 = (-1 + 3) / 4

x1 = .5

x2 = (-1 -3) / 4

x2 = -4 / 4

x2 = -1

And to check that answer: http://www.1728.org/quadratc.htm

Step-by-step explanation:

You might be interested in
There are 8 ducks swimming in a pond. If 6 have green wings and 2 have blue wings, what fraction of the ducks have blue wings?
harina [27]

Total ducks = 8

blue winged ducks =2

fraction of ducks having blue wings =2/8 =1/4

8 0
3 years ago
Select the correct answer.
malfutka [58]

Answer:

B

Step-by-step explanation:

B

x - 4 squared provides 2 real zeros that are the same. These two are not distinct.

The other two come from x^2 - 7x + 10 which has a discriminate of

sqrt(7^2 - 4*1*10) = sqrt(9) = +/- 3 leading to something real and different.

6 0
3 years ago
Solve for t: 2-16t=6(-3t+2)
Schach [20]

Answer:

6

(

−

3

+

2

)

Step-by-step explanation:

Find common denominator

2

−

1

6

=

6

(

−

3

+

2

)

\frac{t}{2}-16t=6(-3t+2)

2t−16t=6(−3t+2)

2

+

2

(

−

1

6

)

2

=

6

(

−

3

+

2

)

6 0
3 years ago
Read 2 more answers
What is the value of X?
zalisa [80]

i think the answer is 8

bc the small one is 4 and the big one is 6

and the other one is 6 so it must be 8

5 0
2 years ago
Read 2 more answers
Find m L<br> M<br> 8.2<br> 100°<br> P<br> 8<br> 7.<br> 29°<br> 13<br> Q<br> 3<br> N<br> m 0
Virty [35]

Answer:

bet

Step-by-step explanation:

5 0
3 years ago
Other questions:
  • Tanner walked a total of 8 kilometers by making 2 trips to school. How many trips will Tanner have to make in all to walk a tota
    10·1 answer
  • Anyone know this I'm struggling
    13·1 answer
  • Choose the best description for the real number 34 over 3.
    11·2 answers
  • (-3 2/3) + 2 5/8 <br> Find the Answer!!
    15·1 answer
  • what is the probability of choosing a red marble from a jar containing 5 red, 6 green and 4 blue marbles
    5·2 answers
  • Can someone please help me find the domain and range
    13·2 answers
  • Did you mean: a dolphin was swimming 28 meters below the ocean's surface it changed its depth to avoid a predator and ended up 2
    5·1 answer
  • help a girl out bc im strugglinggg also, these are two different questions, you can answer both or one of them thank you so much
    5·2 answers
  • 30 points PLease help me
    15·2 answers
  • How many ways are there to make $3 with pennies, nickels, and dimes<br>​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!