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
Natali5045456 [20]
4 years ago
7

I need help understanding this

Mathematics
1 answer:
Leokris [45]4 years ago
4 0

Answer:

x = 6±sqrt( 31)

Step-by-step explanation:

x^2 -12x +5 =0

Subtract 5 from each side

x^2 -12x +5-5=0-5

x^2 -12x = -5

Take the coefficient of x

-12

Divide by 2

-12/2 =-6

Square it

(-6 )^2 = 36

Add this to each side

x^2 -12x +36= -5+36

(x-6)^2 = 31

Take the square root of each side

sqrt((x-6)^2) =±sqrt( 31)

x-6 =±sqrt( 31)

Add 6 to each side

x-6+6 =6±sqrt( 31)

x = 6±sqrt( 31)

You might be interested in
Which system of equations is equivalent to the following system? 3x + 5y = 29 x + 4y = 16 3x + 5y = 29 −x − 4y = 16 3x + 5y = 29
sp2606 [1]

Answer:

Option 3x+5y=29 and -3x-12y=-48 is the system of equations equivalent to the given system of equations 3x+5y=29 and x+4y=16

Step-by-step explanation:

Given system of equations  is 3x+5y=29 and x+4y=16

To find the equivalent system of equations to the given system of equations :

Option 3x+5y=29 and -3x-12y=-48 is the system of equations represents the given system of equations.

Because we can write the given equations as below

3x+5y=29 and x+4y=16

x+4y=16 rewritting as below

When multiply the above equation into (-3) we get

(-3)\times (x+4y)=16\times (-3)

-3x-4y=-48 as same as the equation x+4y=16 so we can say that they are equivalent

Therefore Option 3x+5y=29 and -3x-12y=-48 is the system of equations represents the given system of equations

Therefore 3x+5y=29 and -3x-12y=-48 is the system of equations equivalent to the given system of equations 3x+5y=29 and x+4y=16

3 0
3 years ago
Can someone please help me, this is the last question I need to get and I'm complete, please help me someone or anyone.
OverLord2011 [107]

Answer:

The answer is x15

Step-by-step explanation:

you would multiply the 3 and 5

4 0
3 years ago
Directions: Determine whether the given value of the variable is a solution of the inequality.
Lina20 [59]
2) 4 is not a solution.
3) -1 is not a solution.
4) 0 is a solution.
5) 0.23 is not a solution.
6) 2/3 is a solution.
6 0
3 years ago
Can someone help me with this
Vilka [71]
Put 0, 18, 0 x




- Harvard Math
5 0
3 years ago
In the trivia bowl, each finalist must answer four questions correctly. each question is worth twice as much as the question bef
Anton [14]
D. $1000 beacuse i say s

3 0
3 years ago
Other questions:
  • zoe and Hannah share tips in the ratio 3:7 last week zoe recived £24 how much did hannah recieve last week
    9·2 answers
  • I dont understand pg 154 in the Ready 6th grade book
    11·1 answer
  • ‭‭ A group of circular bottle caps have been arranged in rows and columns with an equal number of caps in each row and column. T
    6·2 answers
  • There are five people sitting around the dinner table . Each person has 2/10 of a pie on their plate. How much pie is left ? Exp
    15·2 answers
  • Reduce 7y + 2y 2 - 7 by 3 - 4y.
    14·1 answer
  • jeremy says that 5.676677666777... is a rational number because it is a decimal that goes on forever with the same pattern is he
    6·1 answer
  • 1500 Divided by 125 equals what
    7·1 answer
  • The sum of the two numbers is 100 and their difference is 6
    14·1 answer
  • 80 KM is 9% of what distance
    10·1 answer
  • Please help! Will award brainliest!!
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!