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
Gre4nikov [31]
3 years ago
11

Please answer ASAP question is in pic^

Mathematics
1 answer:
vlada-n [284]3 years ago
3 0

Answer:

Step-by-step explanation:

Original equation

    √x+6-4 = x

   Isolate

    √x+6 = 4+x

Raise both sides to the second power

    (√x+6)2 = (4+x)2

    After squaring

    x+6 = x2+8x+16

Rearranged equation

    x2  + 7x  + 10 = 0

    This equation has two rational roots:

      {x1, x2}={-2, -5}

Original equation, root isolated

    √x+6 = 4+x

    Plug in  -2 for  x  

     √(-2)+6 = 4+(-2)

     Simplify

     √4 = 2

     Solution checks !!

    Solution is:

     x =  -2

Original equation, root isolated

    √x+6 = 4+x

    Plug in  -5 for  x  

     √(-5)+6 = 4+(-5)

     Simplify

     √1 = -1

     Solution does not check

     1 ≠ -1  

     

You might be interested in
I’m now sure how to work this out... my teacher had shown us this today at the end of class.
Kipish [7]
That's "5 to the negative seventh power," and is equal to

      1            1
---------- = --------- .  I would accept "1/(5^7)" as correct.
    5^7       78125
4 0
3 years ago
The Cooking Club made some pies to sell during lunch to raise money for a field trip. The cafeteria helped by donating two pies
monitta

Answer: 7 pies

Step-by-step explanation: Since the club split the pies into 5 pieces and then had a total of 45 slices, you would first divide 45 by 5 and you would get 9. The question stated that the cafeteria gave 2 pies and they are asking how much the club made. So you would subtract 9 by 2 to get 7. This concludes to that the club made 7 pies in total. Hope that helps!

5 0
3 years ago
Someone help me plz i really need help if you help me I will help you
taurus [48]
2. 4/6 , 6/9
3. 2/4 , 3/6
4. 8/10 , 12/15

5. =
6. >
7. >
8. =
9. =
10. <
11. =
12.
6 0
3 years ago
Bought a board game for $30. The board game is now worth $55. Calculate the percent change in the game's value.
Hatshy [7]
30 is the old value and 55 is the new value. In this case we have a positive change (increase) of 83.33333333 percent because the new value is greater than the old value. Using this tool you can find the percent increase for any value.
3 0
3 years ago
Please help 10 points
Natasha_Volkova [10]

The following applies:

90°

180°

270°

3 0
3 years ago
Other questions:
  • Hiro painted his room at a rate of 8 square meters per hour. After 3 hours of painting, he had 28 square meters left to paint. L
    8·2 answers
  • The absolute deviation of x from 19 is 8
    13·1 answer
  • Which of the following scenarios exhibits a function relation? Take the first set listed to be the domain of the relation.
    14·2 answers
  • Will mark brainliest!<br> (problem below)
    13·2 answers
  • L what is 67000 rounded to the nearest ten thousand
    11·2 answers
  • Need help with this question plz.Will Give BRAINLIEST
    5·1 answer
  • What is the volume of a cube with 1/2 inch sides
    7·2 answers
  • Find the area of the shaded region<br><br> helpp!!
    9·1 answer
  • Which expression is equivalent -8-(-12)
    11·1 answer
  • Find the least common multiple for the pair of numbers. 18,7
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!