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
grandymaker [24]
3 years ago
12

What is the value of b2 - 4ac for the following equation? 2x2 - 2x - 1 = 0 -4 12 0

Mathematics
1 answer:
Daniel [21]3 years ago
5 0

Answer:

I think you mean the equation is

2 {x}^{2}  - 2x - 1 = 0

And you must find

delta =  {b}^{2}  - 4ac = 4  + 8 = 12

You might be interested in
Determine the principal value of the function: Arc sin(square root of 3/2)
Drupady [299]

Answer:

π/3

Step-by-step explanation:

We have to find the principal value of \text{arc sin}(\frac{\sqrt{3}}{2} )

arc sin means sin inverse. The sin inverse is a one to one function with its range between -\frac{\pi}{2} \textrm{ to } \frac{\pi}{2}

The principal value of the arc sin will lie within the above given range.

value of sin (60) or sin(\frac{\pi}{3}) is \frac{\sqrt{3}}{2}.

\frac{\pi}{3} lies between -\frac{\pi}{2}\textrm{ and } \frac{\pi}{2}

So, from here we can say that the Principal Value of Arc sin(square root of 3/2) is π/3

5 0
3 years ago
Helppp, graph of function!! ​
Debora [2.8K]
Yes I will help you but give me point then I will help you
3 0
2 years ago
Joelle is working on a school report in a word processor. She wants to place a figure which is 13.09 \text{ cm}13.09 cm13, point
dimulka [17.4K]
Subtract 13.09 from 21.59 giving you 8.5. Since the amount of space on both the left and right margin have to be equal you would divide by 2 to get 4.25 on the left margin as well as the right.
3 0
3 years ago
Read 2 more answers
PLS HELP ASAP!!!!!! <br> THANK UUU
Elodia [21]

Answer:

a: is 36

Step-by-step explanation:

8 0
2 years ago
Help please!!!!! :) its kind of hard for me..
adoni [48]
It would have to be 5/8.

5 0
3 years ago
Read 2 more answers
Other questions:
  • Describe Harriet Tubman’s childhood. What was one of her jobs as a child? How did she get a scar on her head?
    14·1 answer
  • What is 9/3 equal to
    5·2 answers
  • Read this scene from The Miracle Worker Act 2.
    8·2 answers
  • A replacement value for an open sentence is ​
    15·1 answer
  • Pls help me :D .....
    13·1 answer
  • The sequence of the differences, 2, 4, 8, 16, 32, … is a geometric sequence with:
    8·2 answers
  • Assuming a 2.5% discount will apply , what is the net price of an invoice for $1,275.55 ?a) $1,136.66 b) $1,243.66 c)$1,250.00 d
    15·2 answers
  • One store sells a ream of paper for $37.25. Another store sells the same paper for $32.50. What are your savings at the second s
    9·2 answers
  • Help me on this question please
    15·2 answers
  • I need a detailed explanation
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!