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
ladessa [460]
3 years ago
11

Solve by using the quadratic formula: x^2 - 6x + 7 = 0 Please enter any square root values using "sqrt" or the decimal answer ro

unded to the nearest hundredth (i.e. V2 = sqrt(2) or 1.41).​
Mathematics
1 answer:
olga nikolaevna [1]3 years ago
6 0

Given parameters:

 Quadratic expression:

                 x² - 6x + 7 = 0

Solve using quadratic formula;

                      x   = \frac{-b +/- \sqrt{b^{2 } - 4ac} }{2a}

From the equation;

  a  = 1, b = -6 and c = 7

Input the parameters and solve;

           x = \frac{-(-6) +/- \sqrt{-6^{2 } + 4 x 1 x 7 } }{2 x 1}

          x = \frac{6 +/- \sqrt{36} +28 }{2}

        x = \frac{6 +/- \sqrt{64} }{2}

          x = \frac{6 + 8}{2 }    or \frac{6-8}{2}

          x = 7 or -1

         

You might be interested in
HELP!! which is the measure of wx shown in the diagram below
ki77a [65]

Answer:

idk i'm just trying to get my brainly points up

Step-by-step explanation:

6 0
4 years ago
Read 2 more answers
The corners of a meadow are shown on a coordinate grid. Ethan wants to fence the meadow. What length of fencing is required?
Nuetrik [128]

Answer:

34.6 units

Step-by-step explanation:

The lenght of fencing required is the total distance between point A to B, B to C, C to D, and D to A. That is the distance between all 4 corners of the meadow.

The coordinates of the corners of the meadow is shown on a coordinate plane in the attachment. (See attachment below).

Let's use the distance formula to calculate the distance between the 4 corners of the meadow using their coordinates as follows:

Distance between point A(-6, 2) and point B(2, 6):

AB = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}

Let,

A(-6, 2)) = (x_1, y_1)

B(2, 6) = (x_2, y_2)

AB = \sqrt{(2 - (-6))^2 + (6 - 2)^2}

AB = \sqrt{(8)^2 + (4)^2}

AB = \sqrt{64 + 16} = \sqrt{80}

AB = 8.9 (nearest tenth)

Distance between B(2, 6) and C(7, 1):

BC = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}

Let,

B(2, 6) = (x_1, y_1)

C(7, 1) = (x_2, y_2)

BC = \sqrt{(7 - 2)^2 + (1 - 6)^2}

BC = \sqrt{(5)^2 + (-5)^2}

BC = \sqrt{25 + 25} = \sqrt{50}

BC = 7.1 (nearest tenth)

Distance between C(7, 1) and D(3, -5):

CD = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}

Let,

C(7, 1) = (x_1, y_1)

D(3, -5) = (x_2, y_2)

CD = \sqrt{(3 - 7)^2 + (-5 - 1)^2}

CD = \sqrt{(-4)^2 + (-6)^2}

CD = \sqrt{16 + 36} = \sqrt{52}

CD = 7.2 (nearest tenth)

Distance between D(3, -5) and A(-6, 2):

DA = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}

Let,

D(3, -5) = (x_1, y_1)

A(-6, 2) = (x_2, y_2)

DA = \sqrt{(-6 - 3)^2 + (2 - (-5))^2}

DA = \sqrt{(-9)^2 + (7)^2}

DA = \sqrt{81 + 49} = \sqrt{130}

DA = 11.4 (nearest tenth)

Length of fencing required = 8.9 + 7.1 + 7.2 + 11.4 = 34.6 units

8 0
3 years ago
Under what circumstances would you file form 1040a? form 1040?
dusya [7]
The 1040 can be used by the individual taxpayer to report all worldwide income from all sources plus take care of all of the ather amounts that you would not be able to enter on the 1040 a tax form.
4 0
3 years ago
Which is true about this division problem? Select all
worty [1.4K]

Answer:

45 does not go into 285 evenly

The quotient contains a repeating decimal

The quotient is 6.3

Step-by-step explanation:

285/45 = 6.33333333

6.33333333 = 6.3

3 0
4 years ago
Read 2 more answers
Solving proportions
Genrish500 [490]

Answer:

2x - 12 = 9x - 63 \\  \\ 63 - 12 = 9x - 2x \\ 51 = 7x \\ x = 7.2

4 0
3 years ago
Other questions:
  • Consider the table of values below. Calculate the associated growth/decay factor for the table of values provided.
    14·1 answer
  • Write the sentence as an equation the product of 187 and n is the same as 264
    7·1 answer
  • Are all integers natural numbers? Explain why?
    14·2 answers
  • jacobs job pays him $12.50 per hour which equation can be used to find jacobs salary ,y,if he works for x hours ?
    8·1 answer
  • Evaluate 1 over 4 c+3d when c=6 and d=7
    12·1 answer
  • What is the answer to the question I put a square around it.
    6·1 answer
  • Which expression is equivalent to 4(x + 3)?
    5·2 answers
  • How do I find 2 times as many
    6·1 answer
  • My number 4752512944
    6·1 answer
  • PLS HELP 30 POINTS URGENT!!!!!!!
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!