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
larisa86 [58]
4 years ago
7

Which shows the correct substitution of the values a, b, and c from the equation 1 = –2x + 3x2 + 1 into the quadratic formula? Q

uadratic formula:
Mathematics
2 answers:
enyata [817]4 years ago
6 0
1=-2x+3x^2+1\\\\3x^2-2x+1-1=0\\\\3x^2-2x=0\\\\\boxed{a=3;\ b=-2;\ c=0}
rusak2 [61]4 years ago
3 0

Answer:

a=3,  b=-2 and  c=0.

Step-by-step explanation:

We have been given an equation 1=-2x+3x^2+1.

We know that a quadratic equation is in form ax^2+bx+c.

First of all, we need to convert our given equation in standard quadratic equation as shown:

1-1=-2x+3x^2+1-1

0=-2x+3x^2

-2x+3x^2=0

3x^2-2x=0

Upon comparing our equation with standard quadratic equation we can see that a=3,  b=-2 and  c=0.

You might be interested in
Sergio is working on a research project involving the ages of students at Brooklyn College. After interviewing 500 students, he
Zinaida [17]

Answer:

The probability of of a randomly chosen student being exactly 21 years old.

= 1.293

Step-by-step explanation:

<u><em>Step(i):-</em></u>

<em>Given Population  size n = 500</em>

<em>Mean of the Population = 20 years and 6 months</em>

<em>                                        = </em>20 + \frac{6}{12} = 20 +0.5 = 20.5 years<em></em>

<em>Standard deviation of the Population = 2 years</em>

Let 'X' be the range of ages of the students on campus follows a normal distribution

Let   x =21

            Z = \frac{x-mean}{S.D}

            Z = \frac{x-mean}{S.D} = \frac{21-20.6}{2} =0.2

<em>The probability of a randomly chosen student being exactly 21 years old.</em>

<em>P( Z≤21) =  0.5 + A( 0.2) </em>

            = 0.5 +0.793

           =  1.293

           

6 0
3 years ago
The expression 50w+400 represents the amount of money Jenny has in her savings account after an unknown number of weeks. How muc
Sloan [31]

She originally had $400 in her bank account.

The 50w represents the amount she will put away each week.

3 0
4 years ago
Each person eats 2/3 of a pound of turkey. how many pounds of turkey will be needed for 8 people
dezoksy [38]
Multiply 2/3 by 8 and you will get 16/3 or 5.33 repeating.
4 0
3 years ago
Read 2 more answers
1. is he equation true , false, or open
RideAnS [48]

Question 1:

For this case we have the following equation:

 5x ^ 2 = 6x + 11

We observe that the equation is a polynomial of the second degree.

Therefore, the equation has two possible solutions.

The variable of the equation for this case is x.

In this case, we have an open equation because we have a variable.

Rewriting the equation we have:

5x ^ 2 - 6x - 11 = 0

Answer:

open, there is a variable.


Question 2:

For this case we have the following equation:

 2-8x = -6

From here, we must clear the value of x.

For this, we follow the following steps:

1) Pass the value of 8x adding:

2 = -6 + 8x

2) Pass the value of 6 adding:

2 + 6 = 8x

3) Add the values ​​on the same side of equality:

 8x = 8

4) Pass the 8 to divide:

x = \frac{8}{8} = 1

Answer:

The value of x is given by:

x = 1


Question 3:

For this case we have the following equation:

 y = x-4

The ordered pair solution is the one that satisfies both sides of the equation.

For the point (6, 2) we have:

x = 6  y = 2

Substituting values ​​we have:

2 = 6-4  2 = 2

We observe that both sides of the equation are equal.

Therefore, the ordered pair solution is (6, 2)

Answer:

An ordered pair that is a solution of the equation y = x-4 is:

(6, 2)

3 0
3 years ago
Read 2 more answers
Write each absolute value in a box to show the order from least to greatest.
arsen [322]

Answer:

|–2| |5| |–8| |11| |–12|

7 0
3 years ago
Read 2 more answers
Other questions:
  • Solve x+1&gt;10, x+11&gt;20, and x+21&gt;30
    13·2 answers
  • Mc= 9.11*10^-31 kilograms
    12·1 answer
  • Marcus solved for x in the quadratic equation x2 – 10x + 25 = 0. x = x = x = What is true about Marcus’s work? Check all that ap
    10·2 answers
  • Suppose you take the Medical College Admission Test (MCAT) and your score is the 32nd percentile. How do you interpret this resu
    9·1 answer
  • 1) The extent to which data points from a set of data differ from each other or from the true mean or average.
    7·1 answer
  • Edward has $400 more than Robert. After Edward spends $60 on groceries, he has three times more money than Robert. How much mone
    14·2 answers
  • If it is, identify the common difference. 4, 8, 16, 32, …
    12·1 answer
  • Triangle ABC is transformed to triangle A′B′C′, as shown below: A coordinate grid is shown from negative 4 to 0 to 4 on both x-
    8·1 answer
  • What is pollution ????,​
    11·1 answer
  • Perform the indicated operation.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!