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
Tema [17]
2 years ago
14

Quadratic formula to find the zeros b^2-4b+4=0

Mathematics
1 answer:
Lunna [17]2 years ago
5 0

Answer:

Step-by-step explanation:

Remark

I don't think you need the quadratic formula for this equation. It just factors into (b - 2)(b - 2), but I'll do it because you requested it.

Formula

\text{x = }\dfrac{ -b \pm \sqrt{b^{2} - 4ac } }{2a}

Givens

a = 1

b = - 4

c = 4

Solution

x = - - 4 +/- sqrt((-4^2) - 4*1*4)

       ====================

                   2*1

x = 4 +/- sqrt (16 - 16)

          ==========

              2

x = 4/2

x = 2

There are 2 roots but both of them are the same. Some teachers say there is only 1 root. I'm in that group.

You might be interested in
What is 950% as a fraction
mrs_skeptik [129]

Answer:

9 1/2

Step-by-step explanation:

\frac{950}{100}=9\frac{50}{100} = 9 \frac{1}{2}

3 0
2 years ago
A card is drawn from a well-shuffled deck of 52 cards. Find P(drawing a face card or a 4). A face card is a king, queen, or jack
Reil [10]
There are 12 face cards and 4 fours in a deck so 16/52 total which can be simplified to
4/13
4 0
3 years ago
Read 2 more answers
For the following true conditional statement, write the converse. If the converse is also true, combine the statements as a bico
Licemer1 [7]
Original Statement: If x = 3, then x^2 = 9 (true)

Converse: If x^2 = 9, then x = 3 (false; this is half the story and x = -3 must be included)

Since the converse isn't completely true, we can't combine the two statements to get a biconditional. 
5 0
3 years ago
Which of the following is the quotient of the rational expressions shown<br> below?
alex41 [277]

Answer: B. (4x^2 + 20x)/(6x^2+x-2)

Division is the opposite of multiplication, so you just take 4x and multiply by x + 5, over 2x - 1 times 3x + 2, which is B.

3 0
2 years ago
A florist sells 3 dozen bunches of flowers for $78. whites the cost per flower?
steposvetlana [31]
3x12= 36 flowers for $78

78/36 = $2.16 per flower
4 0
2 years ago
Other questions:
  • A group of objects or numbers is called
    5·2 answers
  • Given the function f(x)=-3e^x^+^1, find f(x) if x=2
    13·1 answer
  • A triangle has sides of<br> length 3 cm, 7 cm, and 5<br> cm. What kind of triangle is<br> this?
    14·2 answers
  • 50 POINTS! SHOW WORK OR ILL REPORT! Multiplying mixed numbers
    15·2 answers
  • PLEASE HELP ME ITS URGENT
    5·1 answer
  • Last Thursday was costume day at Terrence's school. 50% of the 272 students wore a costume. How many students wore a costume?
    11·1 answer
  • Please help asap I rly need help​
    7·1 answer
  • G(x)=2x-1<br> h(x)=x^2-3x<br> find g(x)+h(x)
    6·2 answers
  • Out of sample of 500 people, 25% exercise daily. What is the confidence interval for the population mean of people that exercise
    6·1 answer
  • A European swallow flies about 14 meters in 1 second.
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!