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
mojhsa [17]
3 years ago
13

Solve each equation using the quadratic formula. Find the solutions. x^2 - 6x + 7 = 0

Mathematics
2 answers:
Mnenie [13.5K]3 years ago
8 0

Answer:

3±√2

Step-by-step explanation:

Given quadratic equation is :

x²-6x+7=0          

Quadratic formula is :

x=(-b±√b²-4ac)/2a

ax²+bx+c=0 is standard quadratic equation.

Comparing given equation with standard equation,we get

a=1   ,  b=-6 and c=7

Putting above values in quadratic formula,we get

x=(-(-6)±√(-6)²-4(1)(7))/2(1)

x=(6±√36-28)/2

x=(6±√8)/2

x=(6±2√2)/2

x=2(3±√2)/2

x=3±√2 is the solution of given quadratic equation.



LuckyWell [14K]3 years ago
5 0
X^2-6x+7=0

-b +/- sqrt b^2-4ac all over 2a

a=1 b= -6 and c=7

6+/- sqrt 36-4×1×7 all over 2×1

6+/- sqrt 8 all over 2
6+/- 2sqrt2 all over 2
reduce
3+/- sqrrt2





You might be interested in
A factory makes an oil mixture by mixing oils of grades A and B as follows. For every 2.3 liters of grade A oil, 1.2 liters of g
lozanna [386]
<span>To produce 1000L of mixture the factory will need 657 liters of grade A and 343 liters of grade B. To determine this you have to figure out the percentage of each grade in the mixture. The ratio is 2.3 liters to 1.2 liters. Therefor in this scenario the unit equaling 100% is 3.5 liters. To find the percentage of grade A you divide the amount used by the total amount of the unit 100%: 2.3 divided by 3.5 = .657 (multiply the answer by 100 to get 65.7%). To find the percentage of grade B you divide the amount used by the total amount of the unit 100%: 1.2 divided by 3.5 = .343 (multiply the answer by 100 to get 34.3%) To test your answer make sure both percentages add up to 100%: 65.75 plus 34.35 = 100% To determine how much of grade A and grade B is needed for a set amount of liters you multiply the percentage by the liters needed. For this situation you multiply 65.7% (when multiplying percentages you need to multiply in decimal form). For grade A you multiply .657 (65.7%) by 1000 liters = 657 liters For grade B you multiply .343 (34.3%) by 1000 liters = 343 liters To test your answer you can use the same addition as you did to test the percentages: 657 liters plus 343 liters = 1000 liters</span>
4 0
3 years ago
Read 2 more answers
BRAINLIEST BRAINLIEST!!! <br> EASY MATH! Do with explanation!!
Anuta_ua [19.1K]

Answer:

<em>Answer is </em><em>given below with explanations</em><em>.</em><em>,</em>

Step-by-step explanation:

1)formula \: for \: linear \: equation \: is \:  \\ ax + by + c = 0 \\ 2) \: solution \: of \: the \: equation \: y = 9x - 3 \\ (2,15) \: is \: the \: solution \:  \\ on \: substitutuing \: the \: points \\ 15 = 9(2) - 3 \\ 15 = 18 - 3 \\ 15 = 15 \\ hence \: proved\\ 3) \: given \:( k,7) \: is \: a \: solution\\ \: of \: y =  - 4x + 1 \\ on \: substitutuing \: the \: points  \\ 7 =  - 4k + 1 \\ 4k =  - 7 + 1 \\ 4k =  - 6 \\ k = \frac{ - 6}{4}  \\ k = \frac{ - 2}{3}

<em>HAVE A NICE DAY</em><em>!</em>

<em>THANKS FOR GIVING ME THE OPPORTUNITY</em><em> </em><em>TO ANSWER YOUR QUESTION</em><em>.</em>

3 0
2 years ago
Look at points C and D on the graph:
anyanavicka [17]
I think C Tell me if I’m wrong
7 0
3 years ago
Read 2 more answers
Which statement correctly compares the shapes of the distribution?
aniked [119]

the answer to your question is c

4 0
3 years ago
the equation of a line is y-3x+10. the slope is changed to 3 and the y-intercept is changed to -4 what is the new equation of th
Ghella [55]
Y=3x-4
This affects the previous line because now the slope is a positive which completely turns it around. and the Y intercept is now on the opposite side of the X axis

6 0
2 years ago
Other questions:
  • If T is the midpoint of SU,find x. ( ST=8x+11 and TU= 12x-1)
    5·2 answers
  • 7n - 4 = 31
    11·1 answer
  • If 4m=-15, then -12m=45 Name the property.​
    13·1 answer
  • What is the volume of the pyramid?
    8·1 answer
  • Jack is constructing the circumscribed circle of with just a compass and a straightedge. Which step should he take next in compl
    6·2 answers
  • Solve the inequality graphically.
    5·1 answer
  • Tell whether x and y are proportional.
    13·1 answer
  • It’s not A 0.17 !!!!!
    6·2 answers
  • What is -3(4q-7) Bc I’m confused
    7·2 answers
  • What is 68.500.000 written in scientific notation?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!