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
kifflom [539]
2 years ago
14

A portion of the Quadratic Formula proof is shown. Fill in the missing statement. Statements Reasons x² + x + b 4ac 4a? b? 4a² F

ind a common denominator on the right side of the equation a 2a X? + b 2a b? =4ac 4a? Add the fractions together on the right side of the equation a b2 - 4ac x+ Rewrite the perfect square trinomial on the left side of the equation as a binomial squared 2a 4a 2 Take the square root of both sides of the equation Vb -4ac x+ b 2a + 4a b - 4ас X + 2a + 4a 4ac + 2a 4a 1o ano 4a​

Mathematics
2 answers:
Gelneren [198K]2 years ago
8 0

Step-by-step explanation:

A portion of the Quadratic Formula proof is shown. Fill in the missing statement. Statements Reasons x² + x + b 4ac 4a? b? 4a² Find a common denominator on the right side of the equation a 2a X? + b 2a b? =4ac 4a? Add the fractions together on the right side of the equation a b2 - 4ac x+ Rewrite the perfect square trinomial on the left side of the equation as a binomial squared 2a 4a 2 Take the square root of both sides of the equation Vb -4ac x+ b 2a + 4a b - 4ас X + 2a + 4a 4ac + 2a 4a 1o ano 4a

Alik [6]2 years ago
8 0

Answer:

The fourth option.

x + b/2a = +- sqrt((b^2 - 4ac)/(4a^2))

Step-by-step explanation:

You might be interested in
Solve for X, will mark as brainliest!<br><br> 6(1+x)+x=-14
Nutka1998 [239]

Answer:

X is equal to -10

Step-by-step explanation:

#1. Multiply 6 to (1+x). Doing this makes this equation: 6+6x+x=-14

#2. Then add 6x and x to get: 7x+6=-14

#3. Then move 6 to other side of equation, while at the same time, changing it's absolute value: 7x=-14-6

#4. now you have: 7x=-20, now just divide 7 by -20 WooHoo! You finished it! you have: -2.85714285714 or 2 and 43/50.

8 0
3 years ago
Read 2 more answers
If the circumference of a round barn is 56 meters, what is the diameter of the barn to the nearest whole meter ? Use 3.14 pi
Radda [10]
To calculate a circle's diameter from its circumference, you divide the circumference by the constant pi. So 56 divided by 3.14, which equals 17.83439490445859872611464968152866242. Round that to the nearest whole meter, you get 18 meters. Therefore, the diameter of the barn is 18 meters.
6 0
3 years ago
If I toss a fair coin in real life and I get two heads in a row, does that change the probability of getting one tail in every t
stepladder [879]
Getting two heads in a row does not change the probability of getting a tail. There is a 50/50 chance for both heads and tails each time you flip a coin, because there are two possibilities each equally possible. The 50% probability of getting a tails is not a guarantee. It's possible to get more heads than tails, or vice versa. What the probability means is that on average the results are about equal, and you have an equal likelihood of getting either result. 

Mythbusters has an episode on this, actually. They explain it really well. I recommend you watch it.
7 0
3 years ago
If the family has three pets, what is the theoretical probability that they have three dogs or three cats?
dsp73
It will be a 1/27 chance that the family will have 3 dogs or 3 cats 1/3x1/3x/13=1/27
4 0
2 years ago
Will mark brainliest, pls explain!!
alukav5142 [94]

Answer:

  • B-Neither ordered pair is a solution.

Step-by-step explanation:

<h3>Given</h3>

<u>Equation </u>

  • 6x−y^2=14

<u>Ordered pairs </u>

  • (−9,3) and (2,−4)
<h3>Verifying pairs</h3>

(−9,3)

  • 6(-9) - 3^2 = 14
  • -54 - 9 = 14
  • -63 = 14
  • Incorrect

(2,−4)

  • 6(2) - (-4)^2 = 14
  • 12 - 16 = 14
  • -4 = 14
  • Incorrect

Correct option is B

6 0
3 years ago
Read 2 more answers
Other questions:
  • Given that g(x)=x^2-3x-6, find (gog)(-3)
    9·1 answer
  • I'm doing a 2 step equation and i forgot how to isolate the x
    8·1 answer
  • What is the common ratio of the geometric sequence?
    13·1 answer
  • How do you do 9÷504 in long divison?
    14·2 answers
  • In a given year there is a 3% chance you will get in a small accident costing around $2000 and 0.1% chance you will get in a maj
    8·1 answer
  • What is the slope of the line that passes through the points (26, 7) and (-39, 12)
    11·1 answer
  • On a math test, 4 out of 20 students received an A. Two students are randomly selected without replacement, and the first studen
    10·2 answers
  • The following figures are not drawn to scale but AB and CD are straight lines. Find x:
    5·1 answer
  • Trong mặt phẳng Oxy cho M (1;-1) ;N (3;2) ; P (0;-5) lần lượt là trung điểm của các cạnh BC,CA và AB của tam giác ABC . Hãy tìm
    12·1 answer
  • Let f(x) = −x2 + ax + b. Determine the constants a and b such that f has a relative maximum at x = 3 and the relative maximum va
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!