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
Volgvan
3 years ago
7

Incase you can’t see the picture, it says “Explain how to solve the following equation and check for extraneous solutions: x= sq

uare root of -2x+6 then out of square root +3 Please help guys

Mathematics
2 answers:
Alex_Xolod [135]3 years ago
8 0

Answer:

x=3

Step-by-step explanation: too much math to put here

34kurt3 years ago
4 0

Answer:

x= 3 ; (x=1 is an extraneous solution)

Step-by-step explanation:

-2x+6 is under a square root, so its value must be > or equal to 0

If we solve the inequality

-2x+6 ≥ 0 we obtain

-x+3≥ 0

-x ≥ -3

x ≤ 3

now that we know the possible values of x we can proceed like this:

1) move 3 on the left side of equal and change its sign

x-3 = √-2x+6

2) square the two members of the equation

x^2 + 9 -6x = -2x+6

3) solve the equation

x^2 -4x +3  = 0

(x-3)(x-1) = 0

x = 3

x = 1

4) Check if the solution are ≤ 3 and if they make true the equation

Both solutions are ≤ 3

if x = 3

3 = √-6+6 + 3

3 = 3

true

x=1

1 = √-2+6 + 3

1 = 2+3

1 = 5 false

In conclusion we can say the 3 is a real solution, while 1 is an extraneous solution

You might be interested in
What Force would be needed to extend a spring with a spring constant k=7 N/m that extends<br>0.3m?​
vladimir2022 [97]

Answer:

Force  =  - 2.1 Newton

Step-by-step explanation:

According to question ,

The value of Spring constant , K = 7  N/m   Newton per meter

And the spring is extended up to 0.3 meter

The Force experience on the spring is calculated from the Hook's Law

<u>The principal state that , the force applied on spring to extend or compress the spring to some distance is proportion to that distance. </u>

Let the force be F

So, F =  - K X

where K is spring constant and X is its displacement

Negative sign shows displacement of spring once it is stretched

And K is spring constant

So ,Force = ( - ) 7 × 0.3

I.e Force  =  - 2.1 Newton       Answer

4 0
3 years ago
SOMEONE PLEASE HELP!!!
SVETLANKA909090 [29]
ST = 1/2 (RV) = VQ = 6

answer

ST = 6

hope it helps
8 0
3 years ago
Which number is the best approximation for π/3 : 1, 1.03, 1.05, or 1.07?​
Evgen [1.6K]

Answer:

1,05

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
How do you solve the equation 3x = 9 by multiplying 3 to both sides
notka56 [123]
Whenever you see <em>x </em> next to a 3, and it says that it equals 9, you know that 3•3=9.
5 0
3 years ago
Read 2 more answers
The Sum Of The Interior Angles Of A Triangle Is 180°. <br><br> TRUE OR FALSE
avanturin [10]

True because it is true

6 0
3 years ago
Read 2 more answers
Other questions:
  • A parabola has its focus at (1,2) and its directrix is y=-2. the equation of this parabola could be
    11·1 answer
  • What is the answer of equation 9x(30+7)=(9x30)+(9x7)
    7·2 answers
  • What is the ratio 14/15 expressed in simplest form? <br><br><br><br> PLZZ HELP!
    13·1 answer
  • What's the difference between 1261⁄4 and 78 2⁄3? 
    15·2 answers
  • (2) Solve for x please help
    9·1 answer
  • a sporting complex charges $6 to use its facility. the expression 0.25b+6 models the total cost to hit b baseballs in the bating
    11·1 answer
  • What number is 38% of 60
    6·2 answers
  • Find the distance between the points (3,−5) and , (−7,−5).
    8·1 answer
  • What is the volume of this cone?
    13·1 answer
  • 7. A sales girl is paid Rs 5,000 per month as salary and a 4 commission of % on total sales. If she receives Rs 5,192 at the end
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!